Hi WorknThruDPainGuy;

I had acdf surgery back in 7-2010. for c4 thr c7. I will say c5 -c6 usually affects your biceps and upper arm and forearm. If c4&c5 are involved-- it affects the shoulder and deltoid muscle with major weakness. Also c5-c6 affects your thumb with numbness, c6-7--fingers would be middle finger and ring and pinky. C-7 will affect your hand shake.You really do need to get into a good neuro or ortho spine surgeon asap. You need to know whats going on because weakness from spinal compression is way more serious then from nerve compression. Let us know what happens at your appointment. Wishing you all the best of luck!!