Monsters Inside Me (2009)

A Canadian science-lover and traveler suffers a painful lesion caused by botfly larvae; a video game programmer gets suffers from constant vomiting and coughing. When doctors find a large mass in his chest, it is discovered that he has histoplasmosis, which was contracted from inhaling bat droppings in a cave; a 15-year-old girl gets an extremely sore throat, a headache, nausea, and body pains from Lemierre's syndrome.