Your sugars are not that bad. Diabetic neuropathy starts with numbness and tingling in the hands and feet.

I would look at what you are eating first off. Some foods if you are intolerant can do this. Gluten, nightshade veggies, dairy.

Stop eating all sugar/candy and high glycemic carbs, as a first experiment. Sugar contains fructose, and this sugar is difficult to metabolize in the body. You might consider an elimination diet, after the sugar experiment. Start with Gluten, as that is the most common. I myself cannot tolerate potatoes, or strong tomato sauces (nightshades).

Have you seen this video? About 1/2 way thru, is the metabolic consequences of fructose:
http://www.youtube.com/watch?v=dBnniua6-oM

I would also get your B12 evaluated and Vit D when you go to the doctor. Very low Vit D impacts calcium absorption, and when calcium gets messed up, there are odd nerve sensations possible. Get a CBC and chem panel, to see if anything is off.
A low white count would point to a virus, for example.

To see if it is your neck, and some compression is there or inflammation try a cold pack on it twice a day for 20 minutes and see if the sensations lessen. This can depress any viral contribution, and also relieve some compressive symptoms if you have a structural problem in your neck.