Since i gave birth 2 my 2nd child my stomach never been the same and is too big that i now have even lost self confident, father of ma kids left me ?

First...: First and foremost it is important that you see a counselor in order to help you cope with your new body changes after pregnancy. That should help you feel better about yourself no matter what. Second, a good diet and exercise plan could help as well. Visit a Nutritionist. Third, if the skin is very flaccid see a Plastic Surgeon for evaluation and possible surgery to get rid of extra skin tissue.