My brother Rob, is 42 years old, 6 5 and 118lbs. hes having cronic lower back pain, easily bruises, rapid weight loss, can t hold much down all food smells make him nauseated even things that normally bring him to the kitchen now send him running outside. he s light headed when he stands. he still has energy but not as much as normal and he is always hungry. any ideas? Thank You, Lena Woods