I'd call his emergency line and arrange to be met by this doc at his hospital?
ASAP!
There may be a connection? or NOT.
Difficulty swallowing and gastro issues are often, but not always things that must be checked out ASAP! Swallowing especially! You'd get the ride to the ER and all the 'works' don't let that keep you back.
Please don't delay? It could be nothing or something serious... best to avoid the worst by being seen NOW!
Goodness blessings and luck to you? Let us know what happens! Please!
!!!!!!!!!!!!!!!!!!!! - j