I was dx’d at age 49 and had three bands in my spinal fluid. I got two spinal taps . The first one was fine and the second one was bad. I had a terrible headache for two weeks and was flat on my back like you were. If they schedule you for another spinal tap check out this link. It tells them how to insert the needle so it won’t leak (no headaches)
I’m sure you have a lot of questions but I agree with the others, take some time to let it sink in and spend some time researching it.
As to your question about an MS specialist or regular neuro. I have seen 5 neuros in 6 years, Three were specialists. The worst one and the best one were both specialists. I am glad I got the extra opinions. I am currently with a group that only does MS. It helps me because I can ask a lot of questions and they can usually provide answers. I think you want to find a neuro that you can work well with and one that respects your opinion as well. I think the specialist part is probably secondary.
What ever you decide don’t ever be afraid to ask questions. You almost have to become your own specialist so you know what decisions suit your own situation.
This site has a lot of great folks, don’t hesitate to post if you need to get different perspectives. We’re all in the same boat.
It sounds like you have support from your family which is really important.
Hang in there, stay rested, get informed and start making inquires.
The answers will come.