Thanks for the concern Cathy — I strained one side of my lower back getting a snowmobile out of a deep rut (aka, it was stuck). It is kind of fun, but it was so mild yesterday that it turned out to be a very sweaty experience and the frustration of drowning oneself with one’s own perspiration caused me to try to get it out before I should have. I think the ride home afterward did work out some of the knot (bumpy forest trails, not groomed ones for speed). Could be worse.