Could I have hit someone while blacked out and not know?

[Haytay92]

I have the worst anxiety and obsessive thinking.  I also have a drinking problem and went to my first Aa meeting, so please no judgement from what I have done. I know it was wrong and I'm working on my sobriety. Saturday night I got really drunk and had a fight with my boyfriend. I told him I was leaving and packed up the car and drove away. This was at 2 in the morning. No matter how drunk I ever am I never have tried to drive so that right there worries me.  He said I was only gone for 5 minutes and I don't remember a thing. I looked at my call log and I was talking to my ex so maybe I just drove down the street to call him and came back? There's no damage to my car and I had come back and parked pretty decently. Is it possible I could have hit someone or another car and not know or is this fear foolish? Thank you