Clinical note (Fabio Morus, psychologist): This list is a recognition tool, not a diagnosis. Isolated and temporary symptoms are part of life; what differentiates clinical anxiety from normal worry is intensity, duration, and functional impact. Use this list to observe patterns and talk to a professional — not to self-diagnose.
TL;DR — Key Takeaways
- Anxiety manifests in five categories: physical, emotional, cognitive, behavioural, and sleep-related symptoms. There is no “one anxiety only”.
- The DSM-5-TR and ICD-11 do not list “100 symptoms” — this is a clinical compilation based on diagnostic criteria and clinical practice.
- Warning signs to seek help: symptoms lasting more than 6 months, intensity that disrupts routine, or recurrent panic attacks.
- First-line treatment for GAD and panic: cognitive behavioural therapy (CBT), with or without medication (NICE, 2020).
- Hypnotherapy and mindfulness are complementary — useful for specific symptoms, they do not replace CBT or psychiatry.
Did you know that anxiety can manifest in many ways? It can cause everything from tremors and nausea to obsessive thoughts and panic attacks. Anxiety is the body’s natural response to threat. But when it becomes chronic and intense, it stops being an adaptive response and becomes a clinical problem.
The good news: anxiety has effective treatment. The bad news: most people take years to recognise the symptoms and seek help. This list exists to shorten that delay.
How to organise the 100 symptoms
Anxiety symptoms usually appear together, in self-reinforcing patterns. To make recognition easier, I have organised the 100 most reported signs into five categories:
- Physical (the body reacting)
- Emotional (what you feel)
- Cognitive (what you think)
- Behavioural (what you do)
- Sleep and gastrointestinal (systems strongly affected by the HPA axis)
The same person can have symptoms from several categories at once. The pattern matters more than any single symptom.
Physical symptoms (1–25)
These are the most immediately recognisable, because they come from the body. The autonomic nervous system enters “fight or flight” mode even without a real threat (Mayo Clinic, 2024).
- Rapid or shallow breathing
- Shortness of breath or feeling unable to fill the lungs
- Loss of appetite
- Numbness and tingling (hands, feet, face)
- Palpitations (racing heart)
- Excessive sweating, even in a cold environment
- Cold or damp hands and feet
- Sudden waves of heat
- Blurred vision
- Choking sensation
- Chest pain or tightness
- Tachycardia (over 100 bpm at rest)
- Rapid speech or stuttering
- Fine hand tremor
- Abdominal pain and cramping
- Restlessness in legs and arms
- Chronic muscle tension (shoulders, jaw, neck)
- Back pain without a physical cause
- Extreme fatigue disproportionate to effort
- Dizziness and feeling of imminent fainting
- Weight loss or gain without dietary change
- Nausea and vomiting
- Tinnitus (ringing in the ears)
- Physical irritability (more sensitive skin)
- Diarrhoea or constipation
Citation Capsule: Chronic muscle tension is one of the most underdiagnosed physical symptoms. The DSM-5-TR lists muscle tension among the somatic criteria for GAD, and NICE recognises persistent muscle pain as a common clinical presentation in adults with generalised anxiety (NICE CG113, 2020).
Emotional symptoms (26–45)
These are the hardest to quantify, but the ones that drain quality of life most. They differ from sadness because they come with anticipation of future threat — the mind never stops simulating dangers.
- Constant, disproportionate worry
- Sense of imminent danger
- Fear of losing control
- Fear of going mad
- Derealisation (feeling of unreality)
- Depersonalisation (detachment from self)
- Irritability and impatience
- Sudden anger without clear cause
- Crying easily
- Diffuse sadness without specific reason
- Feeling of emptiness
- Constant shame
- Excessive guilt
- Feelings of inadequacy
- Insecurity about simple decisions
- Intense fear of others’ judgement
- Feeling constantly “on edge”
- Hopelessness
- Distress at being alone
- Discomfort in prolonged silences
Citation Capsule: The DSM-5-TR recognises excessive worry as a central criterion for GAD, present for ≥6 months in ≥3 symptom categories (anxiety, irritability, muscle tension, sleep, concentration difficulty) (APA, 2022).
Cognitive symptoms (46–65)
These are the most confusing — because they look like “thinking defects” and not symptoms. Anxiety occupies working memory and steals attention.
- Difficulty concentrating
- Racing thoughts (a mind that won’t switch off)
- Catastrophic thinking (“what if…”)
- Binary thinking (all or nothing)
- Worry in loops (rumination)
- Frequent forgetfulness
- Difficulty making simple decisions
- Brain fog feeling
- Loss of time awareness
- Hypervigilance (constant alert state)
- Difficulty reading or absorbing information
- Unwanted intrusive thoughts
- Flashbacks to stressors
- Feeling of unreality about the environment
- Superstitious thinking (“bad luck”, “unlucky coincidences”)
- Catastrophising (predicting the worst possible scenario)
- Constant self-criticism
- Automatic social comparison
- Difficulty planning
- Creative block
Behavioural symptoms (66–80)
These are the responses the person gives to the previous symptoms. Often, the person starts avoiding situations as a form of “control”, which feeds the anxiety cycle.
- Avoidance of social situations
- Avoidance of unfamiliar places
- Chronic procrastination
- Repetitive checking (locks, stove, phone)
- Constantly seeking reassurance from others
- Need for control over routine
- Rigid behaviour (difficulty dealing with the unexpected)
- Progressive social isolation
- Difficulty saying “no”
- Reactive aggression
- Smoking or drinking alcohol to relax
- Excessive screen use as distraction
- Binge eating or food restriction
- Compulsive shopping
- Chronic lateness (difficulty leaving the house on time)
Sleep and gastrointestinal symptoms (81–100)
The HPA axis (hypothalamic-pituitary-adrenal), activated by chronic anxiety, profoundly interferes with sleep and digestion. These symptoms are often the first to lead a person to the doctor — and the last to be associated with anxiety.
- Onset insomnia (difficulty falling asleep)
- Maintenance insomnia (waking during the night)
- Fragmented, non-restorative sleep
- Recurring nightmares
- Waking with extreme tiredness
- Dry mouth on waking
- Teeth grinding during sleep (bruxism)
- Worsened sleep apnoea
- Restless legs syndrome
- Heartburn and gastro-oesophageal reflux
- Irritable bowel syndrome (IBS)
- Morning nausea
- Early satiety
- Flatulence and abdominal bloating
- Loss of appetite under stress Useful complementary approaches:
- Mindfulness based on MBCT (reduces rumination in recurrent GAD) — see also the complete anxiety guide.
- Regular aerobic exercise (documented anxiolytic effect).
- Sleep hygiene (routine, schedules, light exposure).
- Clinical hypnotherapy (evidence for specific symptoms such as anticipation and habit).
- Breathing techniques to relieve anxiety: first-line intervention for acute symptoms.
- Emotional diarrhoea
- Slow digestion
- Metallic taste in the mouth
- Frequent urination under stress
When to seek professional help
Normal anxiety and clinical anxiety differ in three criteria (NHS, 2024):
| Sign | Normal anxiety | Clinical anxiety (GAD) |
|---|---|---|
| Duration | Hours to days | ≥6 months |
| Intensity | Proportional to the situation | Disproportionate |
| Impact | Does not interfere with routine | Impairs work, sleep, relationships |
See a professional if:
- Symptoms persist for more than two consecutive weeks
- You have recurrent panic attacks
- Anxiety is affecting sleep, work, or relationships
- You are using alcohol, medications, or substances to cope
- You have thoughts of self-harm or suicide
What helps (and what does not replace treatment)
Evidence-based first line:
- Cognitive behavioural therapy (CBT): treatment of choice for GAD and panic, with robust evidence in meta-analyses (NICE CG113, 2020).
- Medication: SSRIs (sertraline, escitalopram) and SNRIs (venlafaxine) are first-choice pharmacological options in moderate to severe cases.
Useful complementary approaches:
- Mindfulness based on MBCT (reduces rumination in recurrent GAD) — see also the complete anxiety guide.
- Regular aerobic exercise (documented anxiolytic effect).
- Sleep hygiene (routine, schedules, light exposure).
- Clinical hypnotherapy (evidence for specific symptoms such as anticipation and habit).
- Breathing techniques to relieve anxiety: first-line intervention for acute symptoms.
Note: this article is informational. It does not replace assessment by a psychologist or psychiatrist. If you identified with several signs here, consider booking an assessment.
Next step
If the symptoms you recognised here are affecting your routine, it is worth talking to a professional. You can start with the anxiety page of my clinical practice, where I explain how I work with GAD, panic attacks, and social anxiety — or book an initial 20-minute session with no obligation.
Clinical note (Fabio Morus): The difference between those who recover quickly and those who take years to seek help usually comes down to one thing: recognising the pattern early. If you ticked 15 or more symptoms on this list, and they have persisted for more than two weeks, it is worth investigating.
