adride,
It is not uncommon to have cervical radiculopathies without pain. You described loss of strength and altered sensations which are neurological signs. Perhaps consulting a neurosurgeon or having a second opinion with a physiotherapist may be a good idea. Sometimes, the area in which you have altered sensations and the weakened muscle groups can give you clue about where the problem is coming from, spinal or not.

cheers,
M