A few years ago my SO was suffering from serious adrenal insufficiency syndrome, bordering on addison's disease.
She went to an endocrinologist who took one test which returned a normal result (though on the low end) and literally told her she was crazy and it was all in her head.
Turns out the test he gave her was for primary adrenal insufficiency, but she has Sheehan's syndrome, which means the broken part is in her brain, from bleeding out during surgery, and not her adrenal glands themselves so when he injected her with the hormone that triggers the adrenal glands, they worked.
Very few things make me angry. Doctors who deny people treatment when they are obviously suffering (whether through laziness or incompetence) are definitely among them.
I hope you find a new doctor soon sister.
My thoughts are with you.
-Anna