Diabetes Type 2 Support Group
Type 2 Diabetes is a condition in which the body either does not produce enough insulin or does not make efficient use of it. Insulin is a hormone needed to convert food into glucose, a sugar that the body uses for energy. Without enough insulin, glucose can accumulate in the blood, and can cause serious health problems such as heart disease and strokes and organ damage...
It could be related to his diabetes. What have his readings been lately? But of course it could be completely unrelated. Vertigo is a symptom of many things. Has he had a cold lately? Has he contacted his doctor about it? It's always good to get a checkup when the body changes.
You have to find out what is what with him, can't guess on this. Diabetes, vertigo or high bloo pressure? The Doc will tell him...
If his sugar levels are normal, my guess is its something else.
He needs to see a doc.
There is a member group for nerve damage, you may want to check it out...
http://www.dailystrength.org/groups/neuropathy