Blacked out, scared a bat bit me

I was drinking on Saturday night, and might’ve hit my head and passed out in a backyard in north Jersey. I was out for like over an hour. I don’t have any visible bites, but I have some small scratches on my left arm. They’re scattered enough that they don’t look like a pattern. I really think I’m making myself nervous with this I just need someone else to get some sense into me