You can do the saliva cortisol yourself, if you want. There are several
online labs from which you can
order it. Some people think it's really necessary; I'm not a huge fan, because the adrenals do try to take up the slack when the thyroid fails, so when your thyroid levels are where you need them, the adrenals, will often balance back out. Another thing is if your doctor refuses to order the test, will he do anything about the results?