I will see the doctor for the third time next week. Large bulge on stomach but no signs of hernia on CT scan. Claims of MD is that undistributed fat?

Second opinion. To be on the safe side I suggest another exam and opinion in a medical clinic. Possible causes of such a lump include a hernia, lipoma, tumor, or hematoma. A full history with a physical exam and an ultrasound and new CT scan may be needed. The examining physician may also recommend a biopsy of the lump. I wish you the best of luck with your health!