Waiting is the hardest part. My suggestion is to keep a log of all your symptoms. Even the very mildest ones. Maybe just keep a daily log of how you feel each day. Doesn't have to be too detailed unless you're having obvious trouble with numbness, balance or vision. Believe me....when you're trying to remember everything and when it happened this diary will become invaluable.
Has your Neuro done any blood tests? Tested for Lyme or Lupus? So many other ailments can mimic MS. It's just am elimination game. And it can seem to take forever....especially when you're the one waiting for the answer.
Hang in there.