re: Sudden decrease in strength (left side)

I've never had any spinal issues or injuries. No car accidents, or anything that could trigger anything like that. Fairly active 29 year old (gym 4 days/wk and beach volleyball weekly)

Neck feels great. I have full movement with no pain. 4 or 5 months ago I strained my Levator Scapulae in the gym pretty good, and could barely move my neck for a few days.

I do notice some tingling in my left pinky and ring fingers from time to time.