Hello, this is my first time posting in this subreddit so I hope this is OK. I've been worried about something that's just dumb, I've been with my girlfriend for almost 5 years and I remember we talked about me exchanging pictures with another girl back before we met. Recently I've been really anxious that I cheated on her and sent that picture to the girl when me and current SO were dating. I would never do something like this to anyone and I don't know why I'm so set on what if I cheated on my girlfriend when we both remember talking about this incident with this girl before in 2019. My rational side confirms that it couldn't have been with her but my irrational side is stuck on what if. Sorry for the confusing post. It just randomly popped back into my head and my anxiety has been terrible.