<s>[INST] Hello there...i have been having some issues that bother me. I have a pain in my stomach area (my left side)...just where the stomach and pancreas would be. While standing up, I feel a bulge and it hurts to push on it...it seems to bother me more when I am at work..but I sit most of the day. I also have heartburn about every day...I have been taking some prilosec almost everydat to stop that..but when I stop taking that the heartburn comes back. Also, when I lie down I do not feel the hard bulge.Please help [/INST] Hi welcome to Chat Doctor forum.  Thanks for calling Chat Doctor. Forum.  You have pain in the stomach, on upper left side. When you stand and at work it is bulging and tender. You got heart burn also, When you lye down the bulge this appears.  The heart burn may be due to irritation of the stomach due to peptic ulcer of irritant food habits. Underlying cause could be hernia, gallbladder stones, or H pylori infection.  I advise you to consult a gastroenterologist for diagnosis and treatment. You may need to have M.R.I. gastrostomy, besides other routine tests for confirmation.  Wishing for a quick and complete recovery.  Best regards. </s>