Hi, I had a sphenoid sinus infection in June and was on a lot of heavy duty antibiotics. my symptom was severe headache hard to control. I fainted a week ago, barely out, a few seconds , a few weeks before that I blacked out I think from too much cannibis and alcohol. I feel like I have the flu, but no fever. I have IBS and have had attacks, urge to go to bathroom a lot.Feel chills, ringing in ear more than usual.