glass stomach

A sensitive stomach easily upset by certain foods and/or emotions.

I need to be careful what I eat because I have a glass stomach.

When I get over tired my glass stomach hurts.

glass stomach by Scottish Girl January 2, 2018

glass stomach syndrome 

A person’s head is so far up another’s ass it would just be easier if that person just had a glass stomach.
AKA G.S.S

Nick has such a bad case of glass stomach syndrome that Marco should just get a glass stomach.

glass stomach syndrome by STARSCREAM! March 11, 2009