Delayed anxiety and depression

Hello, does anyone know why does anxiety comes delayed after stressful ocd compulsion, once I was checking for a sign of arousal and checking my emotions which turned against me, After this I was looking for anxiety and I felt like my brain was empty and I felt confusion why I don’t have strong anxiety. After few minutes I realised what happened then anxiety started and it turned into panic then After hour or two it went into depression. Now I feel like my brain try’s to hide what happened, when I think about this event I get anxiety and mental discomfort and my memory about this event is weak.

Personally, from what I've seen in this forum, it seems as if we go looking for a reason to be anxious, then latch onto it- if for no other reason, than to be anxious over not having been anxious enough- surely that proves the thing we're obsessing over, yes?? Or at least, that's what it seems like. Forgetting that not being anxious over it is the whole point. And that when you don't feel anxious over the feared thing, it should be looked at as a gift, a respite. Not a reason to double down on the anxiety.

The whole problem is that I check my emotions, I try to force the feeling of anxiety when I’m checking how I feel about my ruminations. I feel like my brain blocks natural flow of emotions and I mistake no emotions with liking.