Last night while enjoying some Fourth of July fireworks I felt something smaller than the size of my fist hit my back. I immediately swiped it away and figured it was a fairly large bug or something like that. I didn't see what it was but it did hit into me but decent force and it hurt. I am now worried that it was a bat That Could Have bitten Me I don't see any puncture wounds or anything like that but it is hard to see my back. I had my friend check today. Ahe didn't see anything unusual. I am concerned and wondering if I should go to the ER to have it checked? I'm worried about rabies in particular but with no real evidence i fear the dr will think I'm just being paranoid . Please advise.