Hello, I m not sure what type of problem I have -- I have pain in my lower back from left to right. If feels full. I was thinking it s constipation. When I go to walk I feel a heaviness in my adomen area, a soreness, not pain, but a soreness and it makes it a little difficult to walk. I have recently started having dizziness. I have gotten into this bad habit of very little water (2 - 4 glasses) each day -- (I just don t feel thirsty) -- and I am overweight - 5.7 female, 350 pounds. I m sedentary, but can get around very quickly - until about 10 days ago when all of this started.