I agree with what has been posted here already. He is doing the best job he can and admitted he was stumped since you tests all come back negative and clear.

With that said, there is not much wiggle room in further treatment. Sounds like he is willing to wait and watch with you and try and treat some of your most pressing symptoms.

As we all know, depression is a sickness with physical side effects and it is also a symptom of MS. Maybe you need to investigate other potential causes for your symptoms. WebMD is a good place to start.

I know this is very frustrating for you and for many it is years before they get the evidence to show up in tests and match to their symptoms. All you can do is keep researching, roll with the punches, and take things one day at a time.