T4 Hell

I recently posted about switching from Levoxyl 100 mg to Tirosint 100 mg. I made the switch exactly 2 weeks ago today. In the past 2 weeks I have 1) gained 4 pounds, despite eating a vegan, plant-based diet of 1200 net calories per day (sometimes less), 2) feel like complete dog poop despite sleeping 9 hours per night; and 3) cannot concentrate to get anything done at work. My hair also began rapidly falling out. I thought this medicine was supposedly absorbed BETTER than levoxyl, thus requiring less, but now I'm just plain confused.

I haven't felt this bad since before I started taking Levoxyl 13 years ago. (For the record, I also take 30 MCG's of cytomel per day). Has anyone else experienced a crash after making a medication switch? I emailed my doctor today and he wants to raise my Tirosint to 112 asap. I just don't know if I should stick it out, or switch to Synthroid.

Any thoughts?