i am having terrible mid back pain on the sides. if i take a deep breath or move the wrong way it stings and feels like something is stabbing me. i think it might be my kidneys. i don't know. doctors don't help me. i went and they said i had bladder inflammation, and i just got off my antibiotics and i still hurt. my stomach is hard and kinda swollen. i have blood in my stool. when i drink liquor, it seems like the back pain is worse. what can i do to relieve this pain?