I'm not familiar with bariatric surgery and how many calories you should have each day; you really should talk to your doctor about that. 500 calories just doesn't seem like nearly enough for an adult woman. That's more like a starvation diet.
I've read that with bariatric surgery, you're supposed to eat quite a few, very small meals/day, so you don't stretch the stomach again. Is that what you're doing?
Because you're eating so few calories, you body might think you're starving and is holding onto fat stores.
You really need to check with your doctor, a dietician or nutritionist about this to make sure you get the right nutrients.
Hello I had a gastric band fitted in June of last year and I'm really struggling too. I have used virtually all my savings to have it done I just don't seem to get the 'full' feeling like I was advised I would? I lost more doing slimming world and weight watchers which only cost £5 per week and felt I had a lot of support at the groups and feel I'm missing that element of discussing successes and failures x