im 17 an i've been feeling pretty bad for about 4 days now, i never have period pain but this time its just really bad, every now and then i feel like someone is stabbing me in the lower stomach. also in these for days i found this wierd lump just above my rectum, and as the days pass its becoming more and more painful. currently sitting infront of the computer and typing this is super painful. i try to avoid sitting or laying down as much as i can but im a student so its really hard and extremly painful. and ive been going #2 like crazy, around 3-4 times a day. i dont know whats going on and its freaking me out. please help me.