Hi Diane,
Most doctors unfortunately know little about thyroid disorders and even less about adrenal problems. If your current doctor won't take you seriously here is a link which may help you to find a good doctor. http://www.stopthethyroidmadness.com/how-to-find-a-good-doc/ the site in general is quite good and worth reading.

If you do have low thyroid and adrenal issues you will need to support your adrenals before starting on any thyroid treatment otherwise you can make adrenal issues worse. Unfortunately I'm not too clued up on thyroid treatments other than Armour so I can't help you there.

I hope you find some relief soon!
Cheers,
Cara