What if I'm lying

So, if I'm retelling a story or relaying information to someone, after I'm done speaking, my brain will send me thoughts like, "What if you lied? You might have told the story wrong! You're lying!" I've started second-guessing myself, even when I know I'm not lying or telling the story wrong😭 This has also bled into twisting my intentions behind certain actions... For example, the other day, I'd been babysitting my younger brothers. I'd gone to use the restroom and thought, "What if the door isn't locked or closed all the way?" Because this has happened once in the past. Turns out, it didn't lock correctly, and one of my little brothers almost walked in on me, but luckily, I shut the door in time, and we laughed it off. But then, I kept getting thoughts like, "You knew that would happen, and you didn't double-check! You wanted that to happen and for him to walk in!" :( I know this isn't true, but it's so annoying! Has anyone dealt with this? If you have, do you have any advice on how to deal with these thoughts?

If I cheated on my boyfriend or did something unloyal , would it come to mind 8 months later? Wouldn’t I have felt and known about it and that it was wrong the second it had happened ? If I wasn’t worried about it 8 months ago, should I worry about it now ? I have major ocd involving cheating and relationships and self doubt .

This situation just happened and I can definitely remember how it went but my brain is telling me otherwise and I know you guys said to sit with the uncertainty but what if the intrusive thought is so bad like disgusting, I can’t sit with that. Maybe it’s false memory but this just happened. I don’t even know how to live with this