Has anyone overcome cheating false memories

Hello everyone I need some advice. I’ve struggled with what I think and hope is ocd for a long time. It started when I was 14 I had a concussion and my brain convinced myself for 9 months that I had this concussion. Then I had a gf at 15 before we were official I did a terrible thing im regretful of it for sure. I kissed another girl. I told my now ex girlfriend about it and I started to overthink the situation and think maybe I slept with the girl or maybe we did more than kiss. In reality we didn’t. when I turned 16 I started having thoughts of maybe I cheated on her with other girls at our school. It would be false memories of me sleeping or doing things with 4 or 5 other girls. That eventually went away as I would ask reassurance like a crazy person. Then one day what I believe was either Christmas time or new years around that time I had this thought “what if I SA’d my ex little sister?” This thought tormented me for so long I couldn’t believe it. As she was so young it would be impossible for me to do that without someone noticing plus that’s absolutely horrifying and disgusting and I’ve never ever ever ever been alone with her or desired to. Then what I knew would happen came along with me thinking I SA’d my little sister or my baby brother at the time. It was a horrible experience. Then it went to me thinking I was a pedo without the false memories. Then it went to my other siblings thinking I did something to them in their sleep, I did something to the pets, etc. As I got older I realized what ocd was and what I was going through and it eventually all went away. But as time goes on I’m now almost 24 I have spiraled back into thinking I SA my ex little sister. It’s crazy because I’ve never had that desire or anything at all it would absolutely break me if that was true. With something like this saying maybe not maybe it did is crazy because it’s a serious thing. I’m getting therapy on Monday and am just wanting my life back. I just recently got engaged to my beautiful fiancé and I want to be regular again. Anyone have any advice or even have gone through the same scenarios? It’s just so tough.

So. I was in a traumatic relationship. for a long time. it was filled with gaslighting, manipulation, abuse, cheating ect. I would OBSESS over finding out where they were, what they were doing, who they were talking too. but I couldn’t leave. I tried so hard but I never could. they would call me names, physically hurt me, throw things, break things. because I would question them all the time. but I just couldn’t leave. no matter what I knew. they would manipulate me. I fell for their childhood trauma. it’s like I lost all logic. but I also feel like I have a pretty good memory with memories. not all the way, but remembering a lot of the traumatic things. especially now that I’m no longer with them. I keep remembering things that’s happened. even from my childhood. one time way before I even started dating this person, I had an intrusive thought about a friend of mine. that was with me. and I freaked out. I thought I had acted on the intrusive thought the next day. I asked my friend for confirmation but they said nothing happened. but the memories about it feel SO REAL. so VIVID. but they swore that nothing happened and they had no idea what I was talking about. I’ve struggled with intrusive thoughts for my whole life. so fast forward to now, that ‘false memory’ from my friend randomly popped up and I started obsessing about it, and my childhood ‘memories’ that have popped up. and then I was reading an article of someone doing something horrible, and then it sounded ‘familiar’ and so then I’ve created this whole memory of me doing something similar to the article involving my partner doing it also. the memory keeps adding new things and conversations around it. when it involves an actual real memory. but it’s like it’s been twisted from what I remembered before. I also suffer from bad anxiety. I’ve stalked pictures. my search history to figure out what I was doing that say when the real event happened. and I’ve found some things but I can’t look through my texts because I got a new phone. it has been hounding me for months. MONTHS. trying to figure out if this new ‘memory’ is real or not. if it’s been fabricated by an intrusive thought from reading the article and thinking ‘what if’ or if it actually happened and because I’m no longer in this relationship it’s a ‘repressed memory’ but the thing is I have horrible horrible anxiety and I don’t think I could have gone this long knowingly that that happened without remembering it until now. because I remember a lot of the horrible things that they did. this ‘memory’ is fuzzy, but it brings me horrible anxiety when I think of it, like I feel like it happened. but I also feel like it didn’t happen. because I know I would never do anything like that. but WHAT IF I DID, because I was manipulated. idk. is this a false memory. I really need help. because it’s been debilitating. that relationship was really traumatic. and I got manipulated into a lot of things. but I wouldn’t have just went forward knowing that that happened??? there’s no way I could have just forgotten it. because before when I would think about that night it was different, until now. but what if I just made myself forget what truly happened?? I’m a pretty self aware individual, but somehow that relationship really REALLY put me into a trance somehow where I allowed things that I have no idea how I would even allow because before I met that person I would have never allowed someone to cheat on my constantly or talk to me the way they did. or allow abuse. like I don’t understand it.

I have false memory real event ocd, I’ve been married 13 years and I used to constantly bring up past mistakes from when we were dating and it RUINED our marriage, but I got medication and therapy and things got better untill a few weeks ago where everything crumbled. I have a memory that is 13 years ago of me being intimate with my husband (than boyfriend) while being intimate I have a memory of sending a text to a male who obviously liked me but I didi not while my husband was under the covers . And I keep thinking over and over how disgusting and inappropriate it was to do that especially doing it in the middle of being intimate 😞. I have confessed this to my husband last year and he didint believe me saying it’s probably a made up memory and would are not a slut and wouldn’t do that. Now i have guilt all over again for weeks and it’s taking such a toll on me it’s all I think about and try to remember every detail I’ve thought about it so much I don’t even know if it’s 100 percent true. But I can vividly see it when I close my eyes. How do I get over this guilt without confessing? Confessing would absolutely destroy my husband.