I am having a period twice this month and I don't even know why I am undergoing this. I wonder if its just a cycle change, or pregnancy could be involved, but I'm scared to actually know or find out. I cramped, then bled more, and I had diarrhea, also along with the throwing up. Standing up straight is hard when cramping. Curled up on the floor may not make it feel better, but it's a better position to be in than standing upright.