Pins and needles with numbness in the feet can be referred from problems in the lower spine.
Pins and needle sensations in the arms can be from pinched nerves in the neck area.
You are right that you can experience these sensations from nerve damage as a result of having a glucose intolerance and diabetes. Having itching skin can also be a symptom of diabetes.
Make an appointment with your doctor to get checked out with regard to any muscular/skeletal issues which may be causing the sensations of the pins and needles. Lack of the Vitamin B complex group can also cause sensations of pins and needles.
A blood test to check your hBA1C levels would also be a good idea. This shows the average glucose levels in your blood over a 12 week period. The doctor may refer you for a glucose test at the hospital.
Um my mom has ms its a deseise where one side of ur body goes numb and then it will go numb and my mom had diabetes before she got diognosed with it. and just yesterday we went christmas shopping and she said it felt like there was somthing crawling on her face and she said it was her ms flaring up so if i was u i would ask the docter about it next time u go i hope it helped
This year I experienced what living with a pinched sciatic nerve entails and from your description I believe you have pinched a nerve somewhere in your back.. It doesn't sound like your sciatic nerve but the numbness normally comes when a nerve is pinched. If the numbness doesn't go away within a week I would get it checked. Also if it is a pinched nerve or herniated/ bulging disc, I highly recommend you ask the physical therapist about 'dry needling' it sounds bad but it works wonders... best wishes