Did you know there's a medical/psychological condition called trichophagia -- where someone is compelled to eat his or her own hair. Could this the next big celeb dysfunction? Move over meth and anorexia. Here comes hair eating to help with your weight gain... An 18-year-old Chicago girl found out the hard way why eating your hair is bad for you. She was suffering from stomach pain, vomiting and losing 40 lbs. over a five-month......