What Causes Numbness In The Right Side Of The Body?
Cervical spinal cord to be investigated as well.
Hello and thanks for using HealthcareMagic.
I have read your question and understand your concerns.
The problem may be in the cervical spinal cord since the brain MRI resulted negative.
Besides neurological examination, in my opinion, is necessary a cervical spinal cord with gadolinium in order to evaluate further possible conditions such transverse myelitis, multiple sclerosis, cervical spondylosis, etc.
Spinal tap and cerebrospinal fluid examination may be necessary as well.
Hope this answers your question.