Once I got on Armour, I felt like I "woke up" after more than 20 years on the synthetics. My ND calls them "garbage". I had virtually ALL of the problems you can get from non-optimal T4 and especially T3, like Plantar Fasciitis, muscle tightness in the shoulders/neck/jaws, extreme constipation, too much weight on a ridiculously skimpy diet, fatigue, sleep problems, and so on.
ksacres - you should consider switching to Armour.
If you are already on Armour and still having awful symptoms, you could have thyroid resistance and possibly need more, or need to support adrenals.
ALL of the information you could possibly need in figuring out your thyroid health is available online. Check out stopthethyroidmadness.com.
On the subject of doctors -- a lot of people go to their doctors without any knowledge about their own health issues, and expect him or her to know everything about medicine. Unfortunately, this is far from the truth, and can be especially problematic when it comes to thyroid information for some strange reason.
If you do plan on approaching your doctor about switching to Armour from synthroid or levothyroxine, be prepared with ammunition.
I suggest that when you go in, rather than being meek and asking the doctor what he/she thinks about Armour, go in strong and confident and say "I want to switch my synthetic thyroid drug to Armour natural thyroid. Please write me a prescription for that today".
If he/she resists and tries to talk you out of it by saying negative things about Armour or about you (very common, by the way), say that you have done a great deal of research on the subject and you feel this is the best thing for your health.
I would not continue seeing a doctor who proves to be on the synthetic big-pharma payroll by trying everything in their power to discourage use of Armour.
If you can't get your doctor to give it to you, and you are unable to find a doctor who will, you can resort to self-treatment. PM me if you want more info about that!