dear rugbykim717,
i'm sorry you've had this awful experience, but welcome! you're in a good place to get info, support and love.
since it might take you a while to recover from the surgery and be able to eat through the mouth normally, i wonder if you've discussed with your physician the option of getting a peg tube? it might help you maintain and/or gain weight. there were some recent discussions about this in the "currently in treatment" forum that you may want to check out if you haven't already.
i too hope you start feeling better soon.
good thoughts, healing and peace.
gita