I'm 2 weeks post op and I'm starting to drink smoothie kings gladiator 20oz for my protein. Does anyone know if that stretches your sleeve?? Obviously I get full very fast but I keep drinking to try and get my protein in... I drink a little more than half and then I cant take it anymore!

I know nothing about smoothie king's gladiator, but don't push yourself to drink (or later, eat) more than you can comfortably handle. You will get sick and undo all your hard work of drinking the shake. Put it back in the fridge and drink a little more when you can do it easily.