I had an operation 4 days ago on my foot under a general anastetic. I was only a day case but i put on a stone in the time i was in hos no joke before surgry i was 8.1 and after 9.3 its been driving me crazy as i feel so fat and its really getting me low is this normal to put on weight post op will it come off i just need someone to reasure me or let me know what is happerening before i lose it.