New pathphys case

Okay kids, here's the latest case study:

A 23-year-old college student goes to her doctor complaining of headache, fatigue, weight gain and a nagging cough. She is normally very active, competing in volleyball, soccer and rugby. She's achy and always feels like she has a chill. She says she has been trying to lose the weight by exercising more and eating lots less, but it doesn't seems to be helping. All that is happening is she can hardly drag herself out of bed. And her hands and joints are swollen. After checking for joint damage (there is none) her doctor sends her along to an endocrinologist who orders a series of tests and gets the following results.

She has elevated TSH (15 mcg/ml), low free t4 (0.05 ng/dl), elevated calcitonin (18 pg/ml) and elevated growth hormone (8 ng/dl).

They did a fasting OGTT but that seems normal (though if anyone can point us to a site that lists ranges of a 30-minute serum level, we'd probably be willing to deify you).

We're wavering on this one. We're leaning toward hypothyroidism, but not sure if it's Hashimoto or not, and if it is, how the growth hormone and calcitonin fit into the picture. We've been at it for about 2 hours today and are going to take a break for now. But have fun with it. It's due the 25th and I expect to get grades within a week after.