For your thyroid, I would suggest finding a really good doc. I went from place to place, and finally ended up using the "Good Doctor's List" on STTM website (link above) to find the one that I use now.
Most doc's think that as long as you are within that "normal" range, everything is fine, but for many of us, that's not true. I had swelling only on the back side of my thyroid, so it couldn't be picked up with the usual scans, and my tests all came back within those "normal" ranges, although I had many of the symptoms of low thyroid, including a 40 lb weight gain in less than 3 months without changing a thing.
Once I was finally on thyroid meds, I started feeling better. I still don't think I'm on the right dose yet, but it's been slow going due to other health situations.
Also, most doc's only look at the TSH, not the T3, T4, and others - which are crucial!! Your body may produce enough of the hormones, but not be able to utilize them- so more sophisticated testing is required and many doc's don't want to have to deal with it.
Herb only treatment for Lyme & Bart ended 12/11 - no active symptoms for 2 yrs -Herb only treatment for Babesia ended 12/12www.healingwell.com/community/default.aspx?f=30&m=2977364
Had Lyme, Bart, Babs, RMSF, Ehrlichia, Myco, Anaplasmosis, EBV
New Lyme case 8/2014 - Healed 1/31/15
*I can usually post a link to any info that I post. Wish to see a link? Please just ask!