Hi, so ive been nauseous for three days, this morning I had the worst cramps ever low in my abdomen. I took some tramadol, and it has let up, but I am still quite nauseous and feel like I need to poop, but when I try it hurts something awful like my insides want to come out, I m also having a hard time passing gas, and it hurts when I cough or laugh. Constipation or something that merits a trip to the er?