My 23 year old Son is complaining of a constant cough with a metal taste in his mouth....he s coughing up only a little bit. This happened 2 weeks ago as well, where he almost lost his voice. He s been complaining about being hot (not temperature wise, but like a hot flash or getting hot quicker than normal). He s HIV+, and his # s are really great...he takes Prezcobix & Truvada! He s also on blood pressure meds. (2 of them and I don t know the name of them)! Just wondering if this could me a reaction to some of these meds., allergies, or Thyroid issues!