It can also be a sign of arthritis, which makes it uncomfortable for cats to position themselves in the litter box. (birdneckanimalhospital.com)
The shoes I'm wearing here have rather low heels, but I still find them uncomfortable for longer stretches of time. (elegance-revisited.com)
This infant car seat lacks seat padding and has no strap cover which makes it uncomfortable for some babies especially during long trips. (babyseats.reviews)