Diagnostic

Osamu has gastroparesis and doesn't want to admit he's scared, but Atsumu wants to make sure he'll be okay.

It shouldn't matter right? He'll be okay after awhile

Includes sakuatsu and osasuna

Really sorry if I got anything wrong, I tried doing as much research as I could and I personally have a chronic disorder, but I was born with it so I don't really know how diagnosing works and stuff, really sorry again