Basically, anxiety asks “what if?”. OCD asks “what if?”, then hands you a job to prove it isn’t true, then asks again.
The difference usually isn’t the thought but what you feel you have to do about it.
Everyone with OCD has some sort of anxiety. Not everyone with anxiety has OCD. The overlap is big, and many people have both, but the patterns look different.
| General anxiety | OCD | |
|---|---|---|
| The thoughts | Real-life worries: work, money, health, people | Sticky themes, often the things you’d hate most: harm, contamination, doubt about your partner, being a bad person, things not feeling “right” |
| How they feel | Worrying, but they make sense to you | Unwanted and intrusive: “where did that come from?” |
| What you do | Worry, plan, avoid | Compulsions: checking, asking, cleaning, counting, analysing, overthinking, mentally reviewing, neutralising |
It works the other way too. Anxiety can bring OCD-like habits: checking the oven twice before a holiday, asking your partner “are you sure?”, googling a symptom when you’re stressed. That doesn’t automatically mean you have OCD, although the behaviour itself may need the same treatment.
What makes the difference is how much space it takes up. If the checking, asking or analysing eats up a lot of your day (as a rough guide, more than an hour), feels almost impossible to resist, or has started shaping what you do and where you go, it’s worth getting it properly assessed. A label on its own matters less than getting the right kind of help.
A lot of OCD happens in your head. Replaying, analysing, checking how you feel, trying to figure it out once and for all. Nobody sees it, so it gets called overthinking, and you get treated for anxiety or stress, sometimes for years.(The average wait time for proper OCD treatment in the UK from symptom onset to first receiving treatment is 11-17 years which is more than a decade!)
The tricky bit: some help for general anxiety can feed OCD. Reassurance, reasoning with the thought, or “challenging the evidence” can become one more compulsion. The response is normal, your brain is trying to protect you, but it needs a different kind of experience to learn it’s safe.
Notice what comes after the thought. Is there something you feel you have to do before you can relax?
Look for the invisible ones. Replaying, analysing, mentally checking, “working it out”, these count.
Get it properly assessed. A therapist who works with OCD will ask about the compulsions, not just the worry.
It’s not necessarily about how scary the thought is, but about what it makes you do.
If it is OCD, the good news is there’s a clear way through. ERP (Exposure and Response Prevention) is the gold standard for treatment: gradually facing the thoughts, feelings, sensations or situations without the checking, reassurance or analysing, at a pace you can manage, until it loses its grip. ACT helps you move towards what matters to you while the thoughts are still there. For other difficulties you experience alongside anxiety or OCD, an integrative approach might be useful.
If you’re not sure what you’re dealing with, get in touch or book a free 15-minute call and let’s work out together what’s keeping you stuck.
Abramowitz, J.S., Taylor, S. & McKay, D. (2009). Obsessive-compulsive disorder. The Lancet, 374(9688), 491–499.
American Psychiatric Association (2022). Diagnostic and Statistical Manual of Mental Disorders (5th ed., text rev.). APA Publishing.
National Institute for Health and Care Excellence (2005). Obsessive-Compulsive Disorder and Body Dysmorphic Disorder: Treatment. NICE Clinical Guideline 31.
National Institute for Health and Care Excellence (2011). Generalised Anxiety Disorder and Panic Disorder in Adults: Management. NICE Clinical Guideline 113.
Rachman, S. & de Silva, P. (1978). Abnormal and normal obsessions. Behaviour Research and Therapy, 16(4), 233–248.
Salkovskis, P.M. (1985). Obsessional-compulsive problems: a cognitive-behavioural analysis. Behaviour Research and Therapy, 23(5), 571–583.
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