So sorry to hear about your cousin. Saying some prayers for you and your family.
I had to go to a psychologist for my SS. They're testing your mental stability as well was cognition (at least that's what they did on mine). It's kind of like a mini neuropsych testing. I didn't pass all of the tests and some I did quite poorly on. It helps SS determine that you are unable to work. When I filed for SSDI, I found that a lot of the questions and such were actually geared towards people with injuries and/or psychological conditions. It didn't seem to apply to those that had an illness, chronic or terminal. They psychological testing really isn't that bad and will give you some insight as well.
That really sucks your "new" neuro is leaving the country for family reasons. I'm so sorry to hear this. You finally got in to one and now look what happened. I hope you find another one soon. Get a copy of all of your records, including your MRIs, and bring them to the new neuro.
Since you have some active lesions did they treat you with IVSM? I hope you start feeling better soon.