Levothyroxine not working, need advice

I would ask for Armour. I took it until I had to switch doctors and my new doctor said they couldn't prescribe it because they didn't know what it was even though it was the very first thyroid meds ever made. But my new doctor or "Physician's Assistant" provided by a government run clinic put me on Levothyroxine and I do not like it as much as Armour so I'm going to try a new doctor