Jacquelinenh, we ARE in the middle of a shortage of natural thyroid. However, you can get it made at a compounding pharmacy or even get a prescription for "Thyroid" by Erfa (in Canada). Many people are finding success with Canada's Erfa product. Some Armour has made its way back to the pharmacy shelves. But, only in small dosages (eg. 60 mg. is available at a few pharmacies I've checked with - but, that's just a fraction of the 210 mg I take).
The problem with the article that you posted is their misinformation about using TSH as a measure of thyroid levels. Unfortunately, almost all endocrinologists use the same practice. Here is what ALL doctors SHOULD be looking for instead: http://www.stopthethyroidmadness.com/recommended-labwork/
It's very sad that doctors have completely lost the "art" of medicine when it comes to thyroid treatment. Before the days of labs, doctors treated thyroid by treating the patient's symptoms - and had very good success. They used natural desiccated (dried) porcine (pig) hormones (basically Armour Thyroid) and patients had RELIEF. These days, doctors treat the labs and not the patient. I lived with symptoms for years before finding out this was WRONG and I didn't HAVE to live that way.
I recommend this website (and ALL that's in it) to everyone: http://www.stopthethyroidmadness.com . It saved me.