hello my neck problem has started since eleven years after an absurd movement of my head.from that moment i had difficulty in speech and when i walk i feel pain in the head and neck. i have visited many doctors all these years but they didn’t find any problem.they said that the cause of my problem is psychological and they gave me psychiatric drugs in order to forget my problem.8 months ago i visited a chiropractor who found the cause of the problem which is Atlantoaxial Subluxation .he said that my spinal cord and atlandas spinal bone are very close .my x-ray is on this url /.
Human speech is governed by the cranial nerves and the brain. The only cord or nerve function that assists speech outside the skull is the phrenic nerve (C3-5) which make the diaphragm move. Without the phrenic nerve, there is no chance of life (without a ventilator).
You may have a “subluxation” of C1-2 as noted by your chiropractor but this will not affect speech function. Manipulation may help you but the neurology described to you is incorrect.