The OGTT sees how well your body shed excess
glucose. The A1c looks at your
glucose levels over the past 2-3 months. Kaiser doc should have ordered these tests - email her and request labs.
Numb Feet and Diabetes
This could be associated with diabetic neuropathy which is damage to the nerves. When a nerve is pinched, per se, for a period of time and then is released it will "Wake up" and cause that shooting, tingling, cramping, numbness feeling. Poor circulation is another cause.