Hallo Mumtaz, there is no medical connection between digestive problems and fat lumps on your body(if these are fat lumps). So in all probability these are two different problems. If you are suffering from Lipomata
(fat lumps) , the only way of getting rid of them is having them surgically removed and there is no medicine that can "melt" them away. It is important for you to see a doctor to diagnose your problems and help with a treatment plan.