repetative thoughts about have i had sex

Hello,
Can anyone help.
I keep having the same intrusive thought, ' Have I had sex with someone and cannot remember '.
I went out drinking on the weekend and did drink more than I should have, especially due to my medication.
I did not black out or anything.
A group of people came back to my house for a drink, and I can remember most things from when we were back at mine, I still think, did i have sex with someone and not remember.
I cant even remember kissing anyone.
My friend who was there told me i never did anything. Please can anyone offer any advice? thanks

[Roger Gould, M.D.]

Cheryl, if you drank enough it is easy to understand that you have a hard time remembering what you actually did from what you wanted to do....consider it true that you wanted to do something, and go from there.