question: Greetings doctor, I have been biting my fingernails (Including the skin surrounding it) for more than 15 years and I am unable to stop it...What concern me the most is that there is a HIV positive housemate and I accidentally touch his feaces with my exposed fingers while cleaning the toilet bowl just 5 minutes after he left the toilet.....5 days later, I suffered some flu like symptoms, sorethroat and some muscle aching and a small swollen lymph node.....Is there a possibility I am infected?