I think it came from the bite, it probably didn't help matters that I continued to ride. I didn't think something like this would have happend. They did give me some heavy duty anitbiotics to take home and strongly suggested that I dont go to work tomorrow, as I am on my feet most of the day. My leg is about 1.5 to 2 inches bigger in diameter... and now it is my bulging quads from all the biking Thanks for all of your thoughts, I am supposed to the Drs tomorrow to check it out. S