My husband is 30 years old, 5'6", 185lbs. For the past 4 months he has had an elevated white blood cell count. He has been on several different antibiotics and had a few blood tests, but they have no idea what is causing this. This entire time, he has been experiencing "light-headedness", abdomen discomfort, some fatigue, occasional diarrhea, and just generally hasn't felt like himself. Any thoughts on what this might be? His teeth are in pretty bad shape, yet he doesn't have toothache pain. Could it be infections in his mouth (that aren't terribly painful) that may be causing this?