A 16 year old male friend of mine first complained of lower stomach pain, had a fever, severe belching, and headaches. then recieved, hives on hands and feet and other parts of the body in splotches, along with high liver enzyme, which has gone down recently after seeing his doctor, who said he could not connect these symptoms to anything. The symptoms of fever and hives and stomach pain have subsided for now. Curious as to what this might have been or be?