Hi, welcome to our site. I am Dr Saumya Mittal, MD.
Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query
There is a strong possibility that there is a swelling or a mass that is developing in his neck. The nature of the mass cannot be confirmed without a
biopsy.
The swelling may be causing pressure on a
spinal cord thereby affecting the other parts of the body causing all the symptoms.
I would suggest an
MRI of the spine and the brain. This may help u know the exact problem and the extent of the problem. You may need to meet a
neurologist and a neurosurgeon (depending on the result of the MRI).
Further medicines would depend on the reports of the MRI and the biopsy (if done)
I hope this helps you. Inform the reports mentioned above/if any other so I can be of help further.
I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you.
Please do understand that some details could be extracted from a detailed history and examination.
Please feel free to ask another query. I would be glad to help you. Looking forward to your return query with the details asked so that I can help you further.
(If the answer has helped you, please indicate this)
Best of luck.