male age 56. 6ft 3inches. 215 lbs currently. nov 2016 began losing weight. no exercise, no diet change. lost 15-20 lbs, surprisingly in abdomen area only. 38 inch waist went to 34/33. like i was 25 again, could see 6-pack abs once again. had loose stools, minor diareha, gas, gurgling stomach. low of 195 lbs, leveled off at 200 for a while. stomach stayed thin until about 3 mos ago, then gradually began expanding as weight came back. very unusual to lose weight in ab area only. i wish i could do it again without the other symptoms. had ct scan and sonogram. found a couple of tiny gallstones. dr not too concerned.