Check his credentials, then his experience. Many specialize in an area that has some connection with what they know. Ex: A victim or witness of severe child abuse may work in that area and know more on that. But depending on your diagnosed condition, they are still licensed but may not be familiar say if trauma was different.
If the referral to neurologist and medication would not help? Then you may have only let him see what he knows as neural imbalance or degradation. He only knows what you tell him. The same as any therapist on any level.

If you went in with a set of self diagnosis in mind, he may take that as delusional, which is a symptom of some more severe diagnoses. Ego may also cause him to refer as in "Well you already know so you don't need me, but need help, still"

I know you have already talked about some of your experience here. When I came here a good friend told me to make a timeline of my experiences, just like a health history. Then give it to therapist on visit and ask them if they have experience or are comfortable treating me.
I was referred right away to a more experienced doctor.

One of the first things I ask someone who has a bad experience like this, have you done a timeline, a list of how the sensations affect you, and whether or not they have experience in managing this type of situation.

It is hard to build a relationship with a doctor if you only tell him/her a part of the story that brings you to them.

Best wishes.