Is it normal to like imagine scenarios to kinda like neutralize or maybe like idk you have to think abt it so it won’t happen.? Or be less worried ig

I recently had a intrusive thought and felt the need to go over it to make sure I didn’t feel anything sexual. Part of the reviewing included creating a scenario similar to the intrusive thought to see if anything was felt. Thankfully no evidence of any feelings. However I can’t seem to find anything on the internet about creating scenarios when checking a previous intrusive thought. Is this common and what is it called has anyone experienced this. I feel very alone. Any feedback would be helpful

I don't know if this is exactly a compulsion, but for a few months I had this mindset of "I have to be anxious so that nothing bad will happen." It was mostly when I went out in any way. Sometimes it was for other people too. For example if my mom went to the store/to get food without me. This was mostly during the time when I had been staying inside constantly for a little over a month. Idk if it was an exact cause but I had seen someone who FOLLOWED me last year, hence why I was staying inside. I guess I just want to know if this is common? I know that the whole "if I do this, then this won't happen" thing is common in ocd, but idk how common it is to somewhat force yourself to be anxious.

I try not to pay attention to my thoughts. I realized that when a thought pops up for me (sex scene), I go back to it a couple of times to figure out what I am I also felt whether, and I simply decided to let them go..however, I am worried about that feeling of sensation in my groin at those scenes in my head, I am afraid of the fact that I can feel something while I am imagining it and that it is spinning non-stop in my mind! l imagine Just A part and it's constant for some days (like a part of a face, a look or something) the whole scene goes to that I spontaneously imagine and I have the feeling that only that part "turns me on" at the beginning, then the rest... Have you had similar experiences and how to overcome? thank you (edited)