I said I would post an update so here it is! 

To recap: although my thyroid levels are within the normal range, my doctor suggested we try me on a thyroid hormone supplement to combat my lingering depressive symptoms. It's not an FDA approved treatment (and never will be because the thyroid hormone is generic &amp; no one is going to spend the money required to get FDA approval on a generic drug) but it has seen some success in several studies. 

It's been about three weeks since I started the new medication (Liothyronine 25mcg). We started me on a pretty low dose but even so, I've seen some improvement. My average night's sleep over the past three weeks has gone from 10.5hrs to just under 9.5hrs, and I've started waking up before my alarm more often than not. It may not seem like much but an extra hour in my day is a pretty big deal for me. I'm also not feeling as tired during the day, so I'm able to more effectively utilize my time spent awake. I haven't noticed any negative side effects at this dose. 

Since I've tolerated the 25mcg, we're increasing my dose to 50mcg (the dose recommended by the literature my doctor has been reading) and hoping to see continued improvement. I will post another update in a few more weeks if anyone is interested. I'm also happy to answer any questions to the best of my ability.