Thanks for the responses ya'll. I'm going to stay with the LDN. And I'm also going to look for another Neuro....or possibly just go to my PCP until Medicare kicks in.

Yesterday while I was at my appointment he told me (again) how he thought Tysabri was the drug for me. I (again) told him that I did not want to go that route and it really didn't matter because I had no way to pay for it after December anyway. He seemed to get annoyed that I wasn't open to his suggestion and the appointment turned sour after that. He pretty much dismissed me by saying "come back in six months....if you want to." I doubt I'll go back to him.