Why is this bothering me so much?

I can't tell if this is OCD to be honest, but with how much I'm focusing on it, it has to be some form or another. My mom and I have never had the best relationship. Ever since I was 6 years old, my OCD has always made me feel like I need to confess my own guilts to her. Our relationship has gotten infinitely better ever since I started therapy a few years ago. Her and I have been able to talk about a lot of things in the past and she's apologized for a lot of things. Recently I've been remembering more real events that make me want to cry. I don't want to keep bringing up things to her that she's done wrong. Especially this current memory, as it was years ago and I know she didn't mean any ill-intent. I don't want to hurt her by bringing this up, because I don't want her to think I'm blaming her or make her feel like a bad mom. I can't tell if this is something I need to talk about with her to get closure, or if this is my OCD disguising itself so I can "confess" to get relief. I'm so tired, I can't stop thinking about it. I'm not even sure if I'm remembering things right anymore. Sorry if this isn't OCD or I sound crazy.

Has anyone had this fear that they were abused in childhood and just don’t remember? And that’s why you have harm related thoughts? Like, I kept thinking if my mom abused me in childhood even though I had not ever thought or felt that way before, it came up a few months ago when my therapist was talking about complex PTSD which then freaked me out thinking something super horrific happened in my childhood and I just don’t remember it. My mom and I are super close, always have been. My mom was protective of me, but never in an abusive sense. She would just worry whenever I went out with friends and such, and wanted me to text her every now and again to let me know what was going on. Even in adulthood she sometimes wants to check in on me if I go out somewhere (even though we live together) and she even tells me to not worry about it and she knows it’s just her anxiety that gets the best of her, thinking something bad happened or what not. Anyway, I kept thinking about this and I thought is this abusive behavior? My mom wanting to check in on me? And I think of course not, it shows she cares and loves me. It’s not like she’s a hounding my phone every second or what not, just a text or a call to see what’s up. But my mind takes it further and thinks this is controlling behavior or something. So it goes back to the was I abused in childhood and I just have repressed memories, and that’s why I get harm thoughts towards my mom. I’m always thinking there is a deeper meaning. I never even thought that before in my life, about the abuse part, but it has become stuck in my mind and I’m scared it will ruin my relationship with my mom.

So I and my mom got into this big fight yesterday and I said some things I didn't mean to say to her and she said some things and I know what I said was bad but what she said cut deep in me because Even though what I said to her wasn't good her words hurt because going through wat om going through rn is honestly the worst thing a human can go through my worries and fears now all of a sudden now become feeling of Suicide and self-harm and honestly she's right because at this point I'm at a dead end and there's no going back I didn't tell her what was actually going on with me because I know she will never look at me the same and growing up with parents that are Gen x back in the day mental illness is a fucking joke to them apparently and is not taken seriously not all of them are like this but I know a few now I've been thinking about offing myself I don't think I'm gonna make it I'm really struggling.