How do you know?

So how would I know if it’s truly ocd or not? Like by accepting uncertainty, will I eventually realize if it was false or true attraction and if it was actually ocd or not? For example I was out today, right after my therapy appointment, I saw a kid that looked exactly like this girl my age that I was into. I felt a sense of attraction and I immediately went into the restroom to hide or smth I don’t remember, but when I came out I think I avoided looking at the kid. Idk if it was false attraction or not, I hope it was but I’m not sure. I can’t really tell. FYI I was never formally diagnosed with pocd before, but my therapist said that I have it but I still don’t believe it. I still feel like it’s not pocd because of the attraction feelings, I can’t tell if I like the feelings or not. I don’t feel any of panic, worry, distress, guilt or shame after any of those feelings. I did start crying when I got home tho idk why or what for, but I went to take a nap for a while and when I woke up it kind of became clearer if it was real or false attraction, but it’s still really unclear, I don’t get why I would feel that way towards a literal child, is it bc she looked like this girl my age that I was into? I hope it was false attraction, still can’t tell.

I know I'm not attracted to children, there's no proof I am and no indication that I am. Yet why do I still get these sexual intrusive thoughts? Why do I still feel so uncomfortable? Why do I feel disgusting, distressed and confused when I get them? Why do I get them in the first place yet I still don't feel anxious enough? I'm really confused about this. I'm not going to do anything to a child or think of a child that way yet at the same time It gets all over in my mind. Is it just me like uncovering some attraction to children that was buried and where would it even come from I've always been attracted to men that are older than me (not like grandpas or something but 1-6 years older) so why the hell am I even getting these thoughts now? I'm genuinely so confused and I don't want this to happen. It feels I'm betraying everyone especially myself

How do you guys handle uncertainty? I keep having so many what if thoughts and I feel so bad. The worst ones are what if I act on my intrusive thoughts or actually want them and I can’t tell if they’re me or not. It just feels so real and at this point I don’t even know if they’re intrusive thoughts anymore. I just want to not be a bad person and not feel like this anymore.