Wow, no discussion on CPS. I'm curious if anyone out there experiences this? I had a stroke in 2013 which has effected my left side. In 2014 I started experiencing pain throughout my entire left side. It is an achy, pins & needles, stinging sensation. I have been on pain medicine since 2014. I really dislike taking medicine, but find I just can't do without it. Anyone know about or struggle with this?