My poor boyfriend has been sick ever since October when we were both hit with the flu. He has lost fifteen pounds, now weighing a mere 130 pounds for an 18 year old, and I'm beside myself with worry. He went to the doctor and was told that he had Ulcers, but I'm not sure if that is the case. He has extreme fatigue, nausea but no vomitting, and he is continually complaining about pains in his stomach, and aches all over his body. He is so skinny now I can hardly bare to see him suffer anymore. The doctor gave his Zantac 150, but it doesnt seem to help. Please, if anyone knows what this could be please get back to me.