Maybe it is a hip issue and not a leg issue? Total fricken pain a few years back after a scope job. Woke up in the most horrible pain I ever had and I needed to pee and the nurse would not let me sit up so I could relieve the pressure, she just kept pushing the pain dispenser button until they x-rayed me.

I hate those unexplained pains. Sleep does seem to help a lot of them for me, except when I wake up the shoulders hurt for a little bit until they move around some.