Hello to all of you

I hope you had a nice weekend!
I still have the same question and no answers...
I am a CP patient due to 2 spinal fusions with complications. But the new symptoms started after my second fusion, about 2 month ago.
I developed severe pain in shoulders/arms/hands/elbows. Not much of a neck pain. I suffer 24/7 from it, but when I lay down the worse pain comes. During the night I get up and walk in a room to come it down a bit.
My right hand is pretty weak, I don't feel much tingling or numbing, but pain is inberable. Now i started to have problem to hold things in my right hand and break a lot of dishes...
Recently I had Cervical MRI and it does show arthritis, bone spurs, C-6 T-1 herniation, but my Neurologist doesn't think it can cause such a severe pain in my arms and hands. He performed an EMG test and it didn't show any nerve
damages.
I take pretty strong PK (LA and BT) for my spinal issues and believe or not, helps some of of my back-leg pain, but doesn't help even a bit my upper extremidies pain.
I am really lost and have no idea what can cause it. I did a lot of research on Internet, but still can't find answers.
Anybody, Please......
Thank you in advance for your support and God Bless