Hey Bud,
Had PCa and have same symptoms. My problem is cervical discs (worn out from a life of working as a carpenter). Wouldn't think your symptoms are related to PCa. An MRI on your cervical spine would confirm this. If you lift something really heavy and a day later start having pain down shoulders and into your arms and hands you most likely have the same thing. A good chiropractor can help a little, ice on your neck for as long as you can stand it helps, a traction device which pulls up on your head, or an inversion machine also helps. The problem is inflamed nerves exiting your spine that are being pinched by your vertabrae (not properly supported by the worn out disks). Try any of these things and see if symptoms decrease. Experiment with different pillows and neck posotions when in bed. Good luck.