False memories / images . Pocd anyone dealt with ?

Pls give advice on how to sit with this . I’m basically wondering if I ever did something. To my younger siblings . I’ve had this before but it seems a lot stronger . Also it’s taking real memories where I was holding one of them as a baby and adding on or trying to add on images /memories to the memory to make it worse . I feel like it’s false but what if … what if I’ve blocked out these thoughts or memories. I also keep scanning to see if I can remember . Out of all these years of pocd I never had a memory about me doing something to them . Even before ocd. I’m 10 years older than my younger siblings . I’m 24 now . Trying to remember if I ever did something when they were babies or little kids A little background : I’ve always remembered this memory even before ocd . My mom used to have me and my older brother (1 year older )bathe in a bathtub together as kids and I remember I had touched/ poked his dick I feel like asked before doing it I think I was just curious either way it was a bad thing . I was like under 10 years old I believe . I had asked him if he remembers that he said no and I asked what if its his memory suppressed he was like no . Now this makes me think what if I was capable to do that to my younger siblings that are 10 years younger than me . Apparently I didn’t do what I thought I did to my older brother in the bathtub even tho I’ve always remembered it