I'm very suddenly experiencing major cramping and nausea, I am sweating and I feel like complete shit. All within 10 mins. Here's what happened: I was laying in my bed when I had to pee. I went and peed, and laid back down on my bed. Then out of nowhere I get intense pain and cramping and I starte to puke so I ran to the bathroom. Nothing else came out. This has happened twice within 5 minutes. Currently I am back on my bed sitting upright. I've had unprotected sex for the past four days, but he only came inside once. I have no idea what's going on but I need help. Any advice?