I've awakened several times recently in the middle of the night with pain. Not a lot of pain, but the kind that makes you restless, then wakes you up. It takes me a few moments to figure out why I am awake. Then my brain kicks on and I sit up, grab my handy glass of water, and take some pain meds.
A while ago I got smarter about things like this, and I started taking a glass of water with me when I went to bed. That way I don't have to get up in the cold and dark... unless of course the dog wants to go out, which is what happened at 3:37 this morning. An unusual occurrence, true, but meant that I didn't get a full night's sleep again.