Oh geez. I cannot sit still with a UTI, either. Get yourself to the pharmacy and get some AzoStandard, stat. It's like Tylenol for your bladder. It will turn your urine bright yellow, almost reddish, but it works like a charm. And get two big bottles of cranberry juice, and drink drink drink.
If it doesn't go away in three days, go to the doctor.
I don't think this has anything to do with not drinking. A UTI will drive you insane.