Taboo - Childhood Memory Guilt Please Help

(20f) I have been dealing with severe OCD symptoms for as long as I can remember. I recently got diagnosed about a year ago, and even though I know that these thoughts are probably my ocd, I still cant shake them. Growing up I was always very sexually curious. I was sheltered from a lot of things, as I went to a private school and things like sexuality and sex were never talked about. I remember doing some weird sexual things growing up (never affecting another person), looking up taboo sexual things, etc. I always seemed to become aroused no matter what the situation was, even if I just saw someone getting changed. I have no recollection of being SA'd, so i'm wondering where this all came from? Was I just curious and wanted to experiment and try different things? Or am I really a pervert, pedophile, etc. I have all these thoughts racing through my head and it's killing me. Everything I did as a kid I look back on and am disgusted, as those don't align with my views at all today. I never thought growing up thinking these things were wrong, or actually realize what they were until I got older. I'd like to think it was just my curiosity, but i'm not sure. What if i'm in denial and actually do like these things? I just need to know if theres something wrong w me, I cant keep going on like this. Could really use some advice.

tw// 18+ please help Mention of self intimacy ok so during self intimacy time, there’s this memory of when I was intimate with a friend of mine. I get off / fantasize about it but what makes me feel weird is it happened when me and the other person was a child. i obviously do not try to picture children and sometimes there’s no faces or it’s the face of how the person looks now. but then it makes me feel weird since the memory we were both children at the time. and then sometimes images of how they look as a child come in my head and my brain is like “do you like that or are u attracted to that” but i end up just like cringing or shaking my head and continue thinking about it how i originally was. idk if it’s wrong to fantasize about that since we were both children. ive fantasized about this memory multiple times without issue but it seems to be an issue now.

I’m reaching out for educational and self-awareness purposes, hoping to better understand something I’ve been mentally struggling with for several years. Around five years ago, I began having a deeply distressing memory involving the fear that I may have acted inappropriately toward my younger sister when I was around 13–14 years old. The details are vague, fragmented, and unclear—but ever since this thought first appeared, I’ve treated it as if it were a real event. I’ve carried immense guilt, fear, and anxiety for years, convinced that I must have done something horrible. Despite asking my sister (who remembers absolutely nothing, has never shown signs of discomfort, and has told me more than once that she would’ve spoken up if anything had happened), the doubt and guilt never went away. The memory feels real, yet there is no external confirmation, no direct recall, and no evidence beyond my own mental images and fear. I’ve also struggled with obsessive thoughts in other areas, such as health anxiety since childhood—frequent doctor visits, checking my pulse, obsessing over illness—and only recently learned about false memory OCD, which aligns with my experience. I’m not currently seeking therapy but would greatly appreciate your professional opinion from an educational perspective: Does this sound more like a real memory, or more likely a false memory created by OCD or anxiety-related mechanisms I am stuck between a normal person or a s*xual abuser