Hello. I had weight loss surgery (bypass) a few years ago. I had been obese for 30+ years since I developed binge eating disorder when I was 11.
I decided to get surgery when I came across the figures already quoted in the thread about the chances of a morbidly obese woman reaching a normal weight being less than one in 600 based on a 10,000 patient study. Chances of reaching a normal weight after sleeve or bypass, 65%.
I went from 21 stone to 10 stone. size 10. My knees work again, I run for fun now etc, Where I went for surgery, 7 of us were in that week and we made a little whats app group to stay in touch. All 7 of us got down to a bmi below 30 within 18 months of the surgery.
For what its worth this is my experience~
I would say morbid obesity is a two fold problem.
One, you have the psychological stuff that has caused the disordered eating and
Two, you have the physiological issues-obesity changes the metabolism, the body set point, the gut makeup etc.
The reason 'normal' diets, low carb regimes etc do not work well with morbidly obese people is because of the physiological changes of obesity. This is not well understood yet. Do you know if you put the gut bacteria of an obese patient into a thin one they gain weight and if you put a slim persons gut bacteria into an obese patient they lose weight....actually true.
So you get the just low carb/blood sugar diet type suggestions which don't really understand that morbid obesity has made marked changes to the body that will make it hard to lose weight and keep it off and that is why the statistics are as brutally bad as they are
Surgery works because its removing some of these physiological issues. For example, type 2 diabetics are often cured in surgery. Not by weight loss, they haven't had any weight loss at that point, but the surgery disrupts the actions of hormones like Ghrelin immediately, ending the diabetes.
HOWEVER surgery will not change point one (psychology). In fact it might be psychologically harder for you than ever as you now have the same emotional issues and not be able to use your normal crutch of food (suicide and divorce rates climb after weight loss surgery, for example).
Incidentally I have never experienced dumping syndrome, of the other women who had surgery the same week as me only 2 dump, 5 of us don't. 3 of the 7 have started putting on some weight due to eating slider foods due to unhappiness, This is inline with the follow up stats on bariatric surgery that show 40% of patients put weight back on (its called the reverse tick because its how the weight loss graph looks)
So I would say, have the surgery, it will save your life and buy you time to address your emotional problems, but they will still be there post surgery. Its not a magic wand, its a tool. Take it as your best shot and work on the other stuff.