I agree with dea about your levels and dosage. Your FTs weren't really high enough on the Synthroid and Cytomel, either, indicating a dose increase would probably help.
Just want to add that your hair may be shedding again from a temporary fluctuation of your FT levels while you made the switch in meds, and not from the Armour itself. If this is the case, the hair should stop shedding within about 6 weeks to 3 months. Of course, it's possible what you really need is that dose increase, and the shedding won't stop until you get it. The fact the new doc doesn't monitor by using the FT tests is worrisome. Most people cannot reach their optimal dose if the doc goes by TSH alone. Most often, if TSH doesn't fall to 1 or well below, symptoms continue; but most docs don't like to see TSH that low, and so they habitually underdose.
Just thinking out loud here... a thought that may or may not be of use to you. But I find it interesting that on your last round of tests, the total T3 was at the top of its range, but the free T3 was woefully low. Just goes to show how worthless the 'total' test is.