im sorry youre having problems with your boy
the first thing i would do is seek out a veterinary neurologist - they are most equipped to deal with this, especially in the early stage of the disease.
Wobblers, aka cervical vertebral instability, etc is a disease common in the doberman breed and the great dane, but other breeds do get it. what it is, is a malarticulation between the vertebral bodies that compresses the spinal cord. when this happens, your dog begins to show neurological signs like decreased or absent conscious proprioception (knowing where their feet are in space), may have neck pain and relucant to lift or lower their heads, and have problems going down stairs.
there are a variety of options for a wobblers dog -- surgical, medical, alternative.
medical treatment for minor cases, dogs that are bad surgical candidates, or owners not willing/able to do the surgery, includes cage rest and pred.
surgery can be performed a variety of ways, but most often dogs get hemilaminectomys - ventral or dorsal. what is done is that part of the vertebra that compresses the spine is literally removed, and then sometimes the spine is stabilized with metal implants. many dogs do very well with the surgery, some dogs do not significantly improve, and some dogs never really recover from surgery. its common in the beginning for them to get worse before they get better.
there is also alternative therapies including neck wraps, acupuncture, and gold bead implants.
what you choose is a decision you need to make in conjunction with your famliy, your veterinarian, etc. but before that, i would definitely go see a neurologist or a vet very savvy in neurology, and consider some diagnostic testing (like an MRI or a myelogram).
i can go on, but this is the short and sweet version. my own dog has a herniated disk at C6-C7 that presented almost like wobblers (and he very well may have wobblers now!), so i can relate to this intimately. each dog is an individual - we are currently at over 2 years past diagnosis and he is still most definitely getting around !