34 year old female with, Dark Brown with what appears to be a redish tint aswell As pain. Last night I felt a pain so sever it brought me to my knees, it was a bursting pain then i went numb. when I say bursting i mean i feel like a balloon popped inside me on the right side just under my rib down to my hip bone. my right side is also swelling today and with it came the darkish urine. I would it is a dark brown with red in not far from turning black. lack of going to the bathroom too. I know what my appendix felt like when it ruptured and since then been removed. this pain was sudden like when it ruptured. though now persistent after the popping or bursting pain. Help please. if i need to go to ER i will.