Hope you're feeling better. I know exactly what kind of stiffness you mean.

My ride was a 4 mile snow shoe. It was about 36 out, but when I got back, I was so hot that I asked my husband what the temperature was. I thought it must have been at least 42, because my gloves and headband were off after 5 minutes. And this was just on a neighborhood trail.

I know it sounds weird, but it felt like spring. The snow had that spring snow feeling.