Thanks for the query to H.C.M. Forum.
As there are already tubal ligation
, so no chances of any pregnancy
( however in 0.5 % case tubal ligation fails after 10- 15 years, according to some studies).
Stomach flutters may be due to tension of day to day life.
Overeating , hyper acidity are other reasons.
In my opinion your stomach is not large , but it is abdomen ( in my opinion).
The abdomen distension may be due to deposition of fat and this is a main cause of concern for you.
So try to overcome the diet.
Avoid fried food + sugar related products.
Urine problem is also , so consult PHYSICIAN and get his opinion and also blood test