Hurting at night

My legs and feet get extremely hot from the inside out at night. They ache and throb. Restless, itching and burning. It keeps me from sleeping. I also experience orthostatic hypotension. My toes and fingers seem to have two colors. Either bright red or blue/purple. Feet stay cold a majority of the time.

Anyone else experience these symptoms?

Anyone have POTS along with these symptoms?