Questions. Please help?

This is my first post, but I've been reading here for awhile.

I have a lot of questions but I'll ask only a few this time.
I've been sick for 2 years. They have done every test imaginable and all except a pet scan (showing possible bone cancer) have come back ok. I just had the test for Addison's. I don't have it. Now we want to get the saliva test. What lab is best? How long does it take to get the results from the lab?

My doctor gave me a prescription for hydrocortizone (sp?). I shouldn't take it before the saliva test.... should I?

I'm getting weaker and weaker and like all of you, I'm SO tired of this I could scream. Thank you in advance for any info you would share!

Hadasah Tweet