I started having pain in my legs when lying down about two years ago. I am fifty years old. The pain is deep and around joint areas and pelvis. Within minutes of lying down day or night the pain begins and elevates in my lower extremities . My knees are painful at the sides and my pelvic area radiates pain down my upper legs only. I don’t have pain below my knees. It’s a pain that differs from arthritic pain that I’ve felt before. It disrupts my sleep throughout the night.