So, I think I'm dying. Ever since I've gotten sick about two weeks ago I've had this terrible headache and diarrhea which is worse than usual. I thought the headache might have been due to dehydration because since I've stopped lifting(for awhile) I've pretty much stopped drinking water. But whenever I drink water it almost feels worse.

I lapse in and out of caffeine addiction but I've never had the withdrawal affects last this long. Any idea what this could be?