Yes, you should get a C-spine mri to ck the disks for nerve
compression or a bulge, etc. May go up to read my post to
shaci-10/9 abt his problem. C6 to C7 can also make thumb &
fingers go numb. Relay is spine to shoulder to wrist. An emg
can tell where problem is but mri is 1st step. Gd-luck.