There is nothing wrong in waiting to start DMD (disease modifying drugs) if you are actively persuing a 2nd opinion. I had one neuro tell me that it was perfectly acceptable to chose NO meds if that is what I wanted to do. He warned me that once you start, they tend to not want you to stop. They will switch you to another one, if you have issues, but rarely will they let you put down the needle once you pick it up.

Welcome to the club house. Sorry you need to be here.