I had to go through over half a dozen different sleep specialists before I finally found a couple of competent ones for treating my severe congenital obstructive sleep apnea.
Nurses are rightly called "The noblest profession," whereas medical doctors are denigrated as "quacks" and "charlatans" for too many excellent reasons to count.
Do NOT tolerate dismissals. Medical doctors work for YOU, and professionals are people who do the jobs they are paid to do. If they dismiss you, then you have an obligation to yourself to dismiss them by immediately FIRING them!
Medical doctors are required to have strong stomachs and be good students at doing what they are told by their professors, but that does not mean they have superior intelligence. (In fact, many medical doctors and dentists are quite stupid.)
You have been dealing with morons. Keep looking until you find somebody who is not a complete pompous idiot, but a care provider who actually respects you, listens to what you say, and refers you for appropriate tests and treatments.
It's not all bad if you are manic. You can even take advantage of it...:
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