Last night, I got this really strange bite on my arm from some kind of bug. I was at my friend's house and saw a dog flea on my arm, but it jumped off and I left the house in a hurry! I am not sure what bit me but I doubt it was the flea; the bite is hard and not really painful, but it feels like the muscle in my arm is tightened up.
Nothing was left in my arm, like a stinger or ::shudder:: fly larvae or anything like that. So what kinda bite makes your muscle feel all tight like this?