hi im 51yr old woman, for a number of mths now , my stomach as been swelling up, my doctor gave me water tablets, but i seem to be getting bigger, my daughter is 9 mths pregnant, and im nearly as big as her, my normal weight is 8 stone and im now 10 stone, when i breath in it does not all go away, and i get pain in my back when i do breath in, can you help pls .