Hello. sunday i started my menstrual and yesterday while i was using the rest room i felt a sharp pain in my bladder. it has been doing it ever since. it seems to only happen when my bladder is almost empty. i have never had that happen to me so i'm not s

Bladder pain: Hard to say exactly what this is, but you should have your urine tested for a UTI, or urinary stones. Any blood seen in the urine? Do you get sharp, sudden onset back/flank pain? Other things to look out for are fever/chills, burning/urgency/frequency when urinating. The main test here is a urinalysis which can be done in any clinic or urgent care center. Hope that helps

Pain: It could be a urinary tract infection I would see your physician to get a definitive diagnosis