How long has this vibration sensation been going on?
Since I am not positive what this condition could be, I am going to opt out so another expert can read this and give a more detailed and specific answer.
Does this vibration occur throughout the body or is it more in the penis and groin area? Is it more along the spine?
Does it increase when you are lying down?
Do you have other symptoms when you get the vibration - dizzyness, a feeling of being drunk, confusion etc?
The vibrating feeling is due to irritation of the nerves and it is due to fluctuating blood sugar levels.
A high blood sugar level affects the nerves and causes them to be hypersensitive. This will cause a mild sensation to run through your body (or some part of the body, like an arm or limb) at even minor stimulus.
But a fluctuating blood sugar level is worse than a constant high blood sugar level and can affect the nerves even more.
Since you are diabetic, your body is unable to metabolize sugar properly. Dieting causes a major affect on the metabolism, plus age is also a factor.
Please consult an endocrinologist for a review of your blood sugar level, the medicine you are on as also your diet. You will probably also need a nerve supplement called Gabapentine (Neurontin) to help support your nerves. Please also take a multivitamin supplement containing Vitamin B1, B6 and B12 as these help in nerve function.
I hope this helps.
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