so about 3 or 4 days ago i felt sick and went to the bathroom to throw up. there was nothing in my stomach so i was just dry heaving. i stood up and felt a dull pain in my right side. the next morning i woke up and my side was in so much pain. it seems to be getting worse. its a sharp stabbing pain under my rib cage on my back. Im on the verge of going to the doctor so im just looking for opinions right now. the pain is unbearable and usually only occurs when my body is straight. i cant stand straight and i cant lie down. i have to sit up to be in the least amount of pain. even when sitting i need to have constant pressure applied to trouble area to not be in horrible pain. i am not sick i dont have a fever. no other symptoms present. i am 21.