If you have no physical symptoms there probably isn't much point in being tested for nerve damage. Do they know you've quit drinking? I'm sure if you tell them they will give you a prescription for vitamins. It sounds like you're not happy with your doctors though. I can relate to that! Can you change surgeries? Or is there a doc there you like? I know it's difficult to get appointments but I'm pretty sure you have the right to request the doctor you want and make advance appointments if it's for an ongoing condition.