About a week ago, I was bitten by this tiny round red bug, and it left a stinger in my hand which I had to pull out. I didn't get a good look at the insect when it bit me because it was quite painful and I knocked it off of my hand. Well, the bite has now turned into a blister, which is very itchy, but not really painful. It doesn't appear to be getting any larger. I can't decide if I should go to a doctor or not since its not really getting worse. Does this sound like something that anyone has had before? Any idea on what the bug might have been? I was picking up sticks in the yard when it happened.