My 5 year old son complains of a headache. he has no fever but his body is very hot to the touch. he has an appetite.

Headaches...: A headache can be caused by many things. Fever, sinus pressure and eye fatigue are just a few of the "benign" causes of a fever. This short question format isn't the best venue to get an answer. You should have your son seen by a pediatrician if the complaints continue. If this is a one time complaint, treat with otc pain med and f/u if not better (for a full exam and to determine cause).