I was diagnosed with a small tumor on my spinal cord c6 and c7, right side as it shows on MRI. Discomfort was my right arm. Lately I have had paid and discomfort on my left side, back of neck just below my hair line. It feels like a slept wrong however its been over 6 days.
There is a possibility that your spinal tumor is pressing over the nerve roots in the neck which supply in the left and right arm. And because of that you might be having discomfort in both arms. Did you consult neurosurgeon/ spinal surgeon for that tumor?you can try Tab gabapentin or pregabalin for arm discomfort