Hey Lorna, tbh everyone is different I for one have lost weight and I’m quite slim already was just over 8.6 stone or so. The bloating goes down after a week or earlier if u stop cocodemol earlier. I ate soup, a high protein diet and snacked on fruits and nuts. I had my op 12 days before Christmas and didn’t feel ready to eat a big dinner until about 5-7 days after the op.
If u drink lots of water and stick to a healthy diet without crappy carbs, biscuits, cakes and chocolate I don’t see why u would put on or retain the bloating. U won’t be able to exercise or move for a few weeks so best to be mindful about what u eat if ur hoping not to gain anything apart from your boobs! Fx