From the COPDF Blog:

Dear COPD Coach,

I have stage 4 emphysema. It is impossible to eat without immediately feeling chest tightness or bloated like I am about to explode. I read about how the diaphragm gets pushed by the stomach and how it changes shape as COPD worsens. Does this mean that eventually I won’t be able to eat?

Thank you,
-Worried

Here is the COPD Coach's answer -

http://blog.copdfoundation.org/have-trouble-eating...

Any other tips?