So I'm having the absolute worst cramps of my life. I am barely able to stand upright and I passed out earlier today because of the pain. It doesn't feel like it's only my uterus cramping, it feels like every muscle in my torso is cramping and it sometimes is hard to breathe. I'm on day 12 now of my period and my flow was almost nothing on day 8 but now I'm bleeding through super plus tampons. What should I do???