Hi Coffeegirl and Welcome back!
What I would suggest is to have the new tests and MRI's done and see what the results are. There are so many diseases and disorders that can resemble MS in many ways. You want to be sure that you get the right diagnosis.
Many of your symptoms could be MS, or even Migraines with and without the pain. Did you have a LP yet? If the MRI's show lesions in MS areas then get an LP or VEP testing.
I have many of your symptoms and a lot more besides those, but you need to fill the criteria to get a diagnosis, or have a clinical exam that is without a doubt showing MS, and tests to rule out other diseases.
I understand you are anxious to get a name for all your symptoms. I am sure you will, but it takes time. We all had to wait and it is hard, but in the long run it is better to be sure. I wish you luck and nice to meet you.
Just don't let them get to you when they say it's all in your head. Forget they said that, and just go from there. They all say that.

Many have heard that term used. It just means they don't know.