Lower left abdominal pain which wraps around my left side to my back. Accompanied by lots of pressure like needing to urinate or have a bowel movement, but can t do either. I am usually very regular. Along with this, my stomach bloats and gets very hard. This goes on for several hours with the pain being so severe at times that I feel like I m in labor, getting hot and sweaty and lightheaded one minute, followed by feeling chilled and cold the next. There is no comfortable position to alleviate the pain during these episodes. Eventually the pain starts to subside and completely goes away, and may not appear again for 6 months or longer.