Gaatagirl,
YOu and God can make it through this, but you have to do your part. That means quitting with the cigarettes. I smoked for a long time too. I put them down on June 19th. It was/is very tough, but I knew it was for the greater good.
As far as your treatment goes; trust your Drs and keep them informed. I still have some pain medication every now and then and I'm 2 months past treatment. During treatment I struggled too. I used my PEG and it helped a great deal. I also used lots pf drugs for nausea and pain.
I'm slowly getting better and you will too.
Tim