Reply #1: Just a wee word of advice

[Warpy]

Ice works better than heat on a bum back or bum hip, even though heat feels better when you first apply it. Ice numbs the area out and you can generally get at least an hour of activity out of a 20 minute application of ice. Heat only feels good while it's there and as soon as you remove it, the spasm gets worse.

I am also facing the fact that my warranty might be up and I've devolved into a collection of failing parts, each vying for the honor of doing me in.