I had an intrusive image and got a groinal response... back to square one ?

Every time I go to bed late and I’m falling asleep, I suddenly get an intrusive thought of a child’s face and my groinal area always responds to it. It’s such an uncomfortable experience. I am way too tired to try and freak out so I end up falling asleep. The next morning I’m always trying to figure out whether I had the groinal response first or after the thought. I start giving OCD power but it feels like If I let it go, then I’m in denial or whatever. I don’t want to ever do anything sexual with a child. I don’t even feel comfortable talking platonically with people who are 17, much less a child. My therapist says that I have a deep rooted fear that I’m this horrible person and that OCD loves to feed off of it. When you get a groinal response, it makes the thought that much more real. I never want these things to happen. I want to only be into adults. It’s so discomforting and stressful. Especially since I’m hyper checking how anxious I am, and if I find I didn’t really have much anxiety, then I’m like “well if I didn’t have anxiety, what does this mean?” And more questions occur til I end up in a rabbit hole

I keep getting these groinal responses when I think about kids or see one and it's really distressing, I only just learned that OCD can make you feel that and it's not actually attraction but it's so hard to remember that and I've seen people talking about accepting uncertainty but I'm so scared to think "maybe it's attraction maybe it's not" instead of "no it's not attraction that's disgusting" and idk what to do

Hi all, I’m really grateful for all the support I’ve gotten from people in the last few days. My mental health is at an all time low and I really appreciate the relief people have brought. I had a question about whether an intrusive image of a potentially imagined event can feel just as real as a real memory. I’m doing my best to stop ruminating over an image I have in my head, and have gone so far as requested security footage of myself and have been told both through that and by my friends that nothing bad happened, but the image in my head feels just as real as other memories. I was also drinking the night in question, which makes it harder for me to dismiss the image and makes me feel like I shouldn’t. I was just wondering if imagined images can feel just as real? I’m trying to use tools to ignore the image, and have therapy scheduled for tomorrow, but I feel like I can’t responsibly dismiss the image even with the evidence I’ve gathered if there’s something about a real memory that looks different in the brain and that if so, that suggests my memory is real and I should confess it. I’m really working on stopping reassurance seeking as well, especially now that even after being told that nothing bad happened when the establishment I was at reviewed security footage, my brain is telling me “they’re probably just lying and never reviewed it.” I know I need to just stop ruminating, reassurance seeking, and mentally checking the memory, but I just don’t know if I can/should in case the image is what I should trust more, if that makes sense.