I would also recommend for you the bypass, since it is more effective at helping keep the weight off if there are any issues with food consumption. While there is still a chance of stretching the new tummy, you've still 'bypassed' the switches and some of the intestines so food flows 'through' you, not allowing it to absorb like the sleeve. It is also quite effective at reminding you that you've eaten too quickly, too much, or that it basically doesn't like what your eating, causing nausea or dumping syndrome. If you learn to listen to your tummy you can be quite successful with the bypass! Everyone is different in their health, so there is no way to determine what your side effects from the surgery will be but they typically don't last longer than a few months and are worth it! I had severe nausea kind of off the charts for about 5 months and it still comes and goes but in the end I still feel it was worth it! Best of luck in your decision!