Hello, my 73 y.o. father has a 103.5 temp. He had surgery the week after Easter, gall bladder removed, some stomach removed and about 1/3 of pancreas removed due to cancerous cysts. That piece of his recovery is going well, but the last three/four days he has been running a fever and vomiting quite a bit. Usually after he eats, but sometimes it is because he is so cold he shakes so hard that he vomits. The vomiting isn t much of our issue right now, we re concerned about the fever and trying to determine if we should take him to the ER? Any thoughts?