What if I snap? The fear at the centre of harm OCD
The thought of hurting someone you love, and the terror that you might, is the OCD theme people find hardest to say out loud. Here is what is actually happening.
What if I snap? What if I hurt my child, my partner, the stranger on the platform? What if I already did, and do not remember? The thought arrives, and with it a wave of horror so complete that it feels like evidence. Surely a normal person would not think this. Surely the fact that I thought it means something.
So you hide the knives. You avoid being alone with the people you love most. You replay moments, looking for proof of what you might be. And you tell nobody, because how could you.
I have worked with this theme many times, and I want to describe what is actually happening, because the picture from the inside is almost exactly wrong.
The disgust is the diagnosis
People with harm OCD are tormented by these thoughts because they are the opposite of what they want. The thought of hurting your child horrifies you because you love your child. The thought of violence sickens you because you are not violent. OCD has found the thing you would least want to be true and is presenting it to you, over and over, as a possibility.
Fearing you could be dangerous and being dangerous are not the same thing, and OCD exploits the gap between them. Someone who wanted to hurt another person would not be sitting awake at night in terror of the thought. The distress is the clearest sign that this is OCD.
Why the thought feels like a fact
Intrusive thoughts are universal. The image of pushing someone, the urge to swerve, the sudden picture of a knife: minds produce these constantly, and most people forget them within seconds. What is different in OCD is the response. The thought sets off an alarm, the alarm feels like information, and the mind concludes that a thought this alarming must be significant.
Then the compulsions begin, and they are what keep it going. Checking your feelings: do I want this, do I feel anything when I imagine it? Reviewing the past: was there ever a moment? Avoiding the situation: never alone with the baby, never near the knives. Seeking reassurance: asking, confessing, reading. Each brings a moment of relief, and each teaches the brain that the danger was real enough to need managing, which makes the next thought louder.
The compulsions you cannot see
Much of harm OCD is silent. There may be no visible ritual at all, just hours of mental work: testing yourself against the thought, arguing with it, searching your memory for evidence. This is still OCD, and it is treated the same way, because it does the same thing. Mental reviewing is checking without the walking back.
What I will not do
I will not tell you that you would never do it. I know that sounds strange, from someone who has just told you the distress is the diagnosis. But reassurance is the compulsion. If I told you the thought means nothing, you would feel better for an hour, and then the doubt would reformulate, and you would need to hear it again. I would become one more thing to check. What we work on instead is the mechanism, so that the thought can pass through the way other people's do.
Will you report me?
This is the question underneath the silence, and it deserves a plain answer. In OCD these thoughts are unwanted mental events that the person is fighting, rather than threats or plans, and describing them is a normal part of treatment. Therapists who know OCD understand the difference, and it is not a subtle one. This is a recognised, treatable presentation of OCD.
What treatment involves
The treatment is CBT with exposure and response prevention, which NICE recommends for OCD. We work out how your particular fear is maintained: the avoidance, the mental reviewing, the reassurance-seeking. Then we dismantle it step by careful step, at a pace you set. Being alone with your child again. Using the knife to cook. Letting the thought be there without checking how you feel about it. The exposures are always agreed together, never sprung on you.
A typical course runs 12 to 16 weekly sessions. Many people recover their relationships and their confidence fully, because the thing they were afraid of was never there.
If you have never told anyone, there is more on how I treat harm OCD, and you can begin with the theme in general terms and say more as trust builds.