@cecily125 Welcome to Mayo Clinic Connect. That must be pretty distressing to your son, and to you. You didn't mention how old he is, but i figure as an adult he has a sayso on his diet? Having to feel like you cannot eat when/how/ what you want to because you're afraid of pain and upset makes getting proper nutrition a real challenge, doesn't it? Has he tried supplements like Boost or Ensure?

I am curious what tests he has gone through, and what his medical team maybe saying is the cause of all this?
Ginger