All day rumination

I have been really really struggling for the past 3 months and haven’t been able to stop intrusive thoughts/ rumination and confessing. It’s making me question my entire life, my relationship and even who I am as a person. It’s mainly effecting my relationship, I am so afraid that I did something or think things that are definitely hurtful to my partner. I know my brain is contorting my own memory and making things seem so much worse. I also know I haven’t done anything bad, all my things I’ve confessed about have been considered “normal” and I’ve been told that “you’re normal, you didn’t do anything wrong”. But I have felt this intense sense of guilt and shame and it doesn’t go away, I can’t even be a normal person anymore. And I keep searching for “just one more thing I need to tell” and I don’t want to keep searching my brain of every time I’ve said or done anything that I can distort and make seem 1000% worse. I’m isolating myself and just feel like I’m a bad person. I keep confessing my thoughts, feeling, urges, etc. to my partner and while I know I would never do any of these I feel like my ocd is trying to convince me that maybe I would because “why else would you think it or feel guilty” and that makes it so much worse. I really need guidance on how to handle this. What do I do to stop feeling like this and heal?

I’ve been feeling the compulsion of confession again. I hate confessing things to my boyfriend I don’t want him to carry the burden. I’d rather hurt than him hurt. But I feel I did something wrong and he needs to know. Like I need to be punished or something. I may be over reacting to it but I just feel guilty and I had a panic attack when I woke up yesterday. I would never cheat on him. Just making guys laugh I feel like I am doing him wrong or flirting. And then when I notice it I just feel awful. I just want to be liked and noticed not romantically but just as a human. I don’t know why I act like this and feel the need to tell him as if I slept with someone. I think it’s attacking my biggest fear which is losing him. Does anyone have experience with this?

I ruminated too much this morning and got distressing mental images (and confirmation) which sent me spiraling again. How do I stop thinking about this and how do I get back to myself? I feel destroyed.