Hi. First before the apt I would try to get all his medical records and tests done to give to the neuro. You should keep a binder always. So for ex when he gets the emg make sure you get the results. There is a lady here who has a very helpful link www.lizajane.org that you should look at. Neuro's I have not had the best time with but mine did run a lot of tests and that is a long frustrating process but then can direct you to other specialties. Who did the b12 testing? A gp? How is your husband pain wise with over the counter? I ask cause if he needs more help then possibly to ask the neuro cause they don't always offer. Lastly after many many apts I have found it is key to be able to describe your pain and symptoms as best as you can. Also to come with a list of ?'s because in the moment things get forgoten. There is a lot of people her with b12 issues too so they will I am sure chime in.