Has this happened to you while pregnant? Doctors or Nurses?

So Im 24 weeks pregnant and one day. Last night I began to get really hot and horribly sweaty. Then I got bad contractions which actually felt like really bad menstrual cramps only 1000 X worse! I felt like my stomach wanted to explode! Then came the diarrhea. I kept trying to brave them out. But I just couldnt. Ive never been so scared in my life! I actually was crying and I really wanted my mommy. (I know I know Im 22 and Im crying for my mom) But it hurt sooooo bad! I got into bed, turned on the fan and laid down. My boyfriend got into bed with me and basically lulled me to sleep rubbing my back. The contractions actually got less and less frequent and less painful. Although this morning I woke up and the contractions were still kinda happening but it was really lightly. The top of my stomach was sore and felt like I had been excersized my tummy with crunchies! I still had diarrhea this morning and when I walk my poor back whines like crazy. I have no idea if I lost my mucuos plug!