Re: Secondary Hypo, can't stand watch and wait
I'm amazed you got an endo appointment so fast. They're usually booked up for months. Be prepared though; endos are the least likely to diagnose hypothyroidism. They're "textbook" types who cannot see shades of gray.
Also, don't focus on weight with him. If he suspects even a little that you're seeking thyroid hormone as a weight loss drug, you'll be dismissed without even a fair hearing.
Forget the "secondary" hypoT thing. Your TSH is too high for that. Secondary hypoT presents with low or low-normal TSH and low free T4. Who told you it's secondary?