I am 39 and had a tubal ligation done about 6 years ago. Lately I have noticed a lot of problems in my lower abdominal region. I often feel full after a few bites of food and when I do eat a full meal, my lower obdominal region gets distended. I have frequent heartburn, gas and burping. I also feel queezy, almost like I am about to vomit, but I don't. At first I thought it might be gastricparesis, where the stomache is slow to empty, but then I noticed another symptom. When I have one of these episodes, my uterus is hard as a rock. I have no abnormal bleeding and my periods are fairly regular and about the same heaviness and duration each month. Nothing has changed in that area. Any ideas?