Need advice

How do you know the difference :( I genuinely cannot keep living in this torment. it all started with an ‘intrusive thought’ where I had like a hazy flash of something reading an article. and I remember thinking ‘what if’ and ‘what is this’ and then that intrusive thought turned into me ‘remembering’ something else. which caused me panic. then I started trying to find evidence because it contradicted what I remembered this entire time. this was last year in like september. fast forward to march this year, it came back up- but this time stronger and with more ‘details’ and what nots. and I’ve been ruminating on it since then trying to remember and connect and It’s like I’ve added all of these details. but are they real? or is this just my OCD? I just feel like if it were real I would have never been able to keep it to myself. but also what if it was so traumatic that I blocked it out? because it all makes NO sense for me to do something like that. but it also fits what I was thinking at the time. idk

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

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.