Hi..after my gallbladder removal iv lost alot of weight..im not 44kg..i want to exercise and get rid of my belly babyfat and just look nice and toned but im worried if i work out il stay the same..i want to gain weight..my face is so skinny i hate it..i also have a fast metabolism and always been skinny...what should i do? Exercise as i will gain muscle or gain some weight first then work out?? Finding it pretty hard to stretch my stomach back to its old size and eat more..thankyou for your help.