<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have been experiencing a heavy feeling in my upper left abdomen that I notice when I lay down at night. If I am lying on my right side, the heavy feeling in my left side will be uncomfortable enough for me to roll over to that side, where I don t notice the heaviness as much. If I roll over during the night and my left side is again on the upper side of my body, the discomfort will sometimes wake me. I have also been experiencing some pain in my legs. Could this just be poor circulation or could the two symptoms be related? Thank you for your help. Sabrina  <response>: Hi. Thanks for your query and an elucidated history. You have a classical history of heaviness on the left upper side of the abdomen getting enhanced on turning to right side. The most probable causes can be :Severe colitis of the left side of the colon also called the descending colon;HY Chat Doctor. I would advise you the following:Get an ultrasonography of the abdomen, Standing X-ray of the abdomen, Colonoscopy. The treatment will depend upon the findings. 