Pain that comes and go in my legs, mostly at night, feels like they are on fire, and like someone is grabbing them. I feel relief when I massage them.

Restless legs. syndrome is a common condition that causes your legs to become uncomfortable when you are lying down or sitting. Some people describe it as a creeping, crawling, tingling, or burning sensation. Moving makes your legs feel better, but not for long. RLS can make it hard to fall asleep and stay asleep. Try a warm bath and stretching exercises prior to going to bed.