What does it feel like? My back has absolutely been killing me the past hour or so. I seriously feel like I do when I’m on my period, my back hurts and I get the poops (tmi). And for the last 2-3 hours my stomach has been getting super tight and hard to the point that it hurts to walk. I don’t necessarily feel like I have period cramps but it is definitely like a stabbing sensation right at my uterus.