Please help!!

Sidney
Went to the hospital thinking I was going into labor, all they said was that I was dehydrated and gave me a bag of fluid. They sent me home but I'm still hurting pretty bad. My lower back, sides, and the top and middle of my stomach is so knotted up! I'm not constipated given the fact I use the bathroom at least 4 times a day! Anyone know what could be wrong???