My husband is 63 . Never has been sicker then just a flu in 45 years. The last 7 months he had lost more then 60lbs, I can feel his bones He has not been able to keep solid food down since December. He has lost most of his muscle tone to the point his coordination makes it hard for him to walk. He has no pain, no fever, his eyes are clear and bright and his skin tone normal yet so week he stays in bed. I took him to ER where his urin and chest x ray looked ok but his potassium was too low. I m very worried at this point. I know something is seriously wrong. I hope to find a family doctor but, not sure of what kind. Can you advise me.