ouch

someone you know is in constant physical pain.

don't ignore it.  don't make a big deal out of it.  listen and let them whine a bit more than other people but don't let them wallow in it.  offer to lift heavy things for them, but let them do it if they decline your help.  ask what hurts.  realize they may look at a tall shelf differently than you do.  don't be afraid to laugh about it when they make fun of their ailments.  stop giving them tips on curative techniques unless they ask for them. 

every day is a syk day.