I Have Prostate Cancer With Mestatisis To The Bone, Ive

I have prostate cancer with mestatisis to the bone, Ive been having symptoms of a numbing pain going through my legs, very little pain in the joint. The numbness seems to be in the front of the legs but feels uncomfortable. I feel a little pain in the hip and shoulder as well all after sleeping for a few hours. Never during the day when I'm walking and moving around during the day. This often occurs at night when I have been at rest for about 3 hours.