They never figured it out although they think it was mole killer. Long story short, I was playing football with my friends in their backyard where the parents had put mole killer in the past week or so, I fell scrapped my leg, and within like 3-4 days started showing the initial symptoms which they though was a bug or the flu. Few days after that my mom brought me to the ER with a crazy high temp.
One plus, is it's kinda like chickenpox, the odds of you ever getting it again once your body fights it off the DR said is like one in a billion.