I'm bloated, and when lifting my leg and bending at the waist, I have severe discomfort in my abdomen. Is this just bloating or maybe more serious?

If Severe, see a MD. Anytime you have severe discomfort it could be something more serious. Hernias, gallstones, infection of the colon, ovarian cysts can all cause bloating and severe abdominal discomfort. I suggest you go see a physician .