Met With Dr. Today

So i met with my doc today. We went over endoscopy results. I have a hernia and he will fix during surgery. I would say two more weeks till surgery. He said i only have to do liquid preop diet for about 3 days...and he just wants me to replace some not all meals with protein drinks. My bmi is 36. I am 36 yrs old..and i am 5 4". I am excitedand nervous. Just mainly because i dont know how long it will take me to recover..and i fear waking up with 85 percent of my stomach gone. I think that cancer patients do this..and yet i am doing it too loose weight.which is also a condition because my quality of life is just not there. I cant even wear skirts because my legs touch and it hurts to walk..and i get sweaty...i tried my size 16 jeans yesterday and they don't fit. I have never gone past a size 16. I see a double chin..and my arms are huge. I can't seem to look good in any clothing. Well hope all goes well. Thanks for listening.