Hi
Welcome to the MedHelp forum!
Fever with chills can be due to heart infection or lung infection. Also since your husband has numbness of hands and feet, chances of spinal nerve compression at cervical spine level, or a bone infection should also be looked into. It would be wise to consult his PP to start with without delay.
Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!
It almost sounds like he could be developing pneumonia or some other infection. I would definitely call the doctor as soon as possible. Good luck,