my grandmother is 93 years old. She has a 3 degree above normal fever and no chills. she was sick at her stomach this morning and could not eat or drink. later this morning she vomited and is feeling better and is eating and drinking. but she has a fever and has had 1 325mg aspirin. 2 hours later a 500mg Acetaminophen. and now another 325mg aspirin. she still has a fever. 1 aspirin always worked in the past. Pulse oxygen level keeps dropping below 90 without oxygen. any help with this strange fever would be great.