I have a strong history of thyroid diesease. I take 600 sythyoid during the week and 700 during the weekend. With this high dose it has kept my tsh levels down. However, for the last four weeks I started feeling like I have something stuck in my thoat. Instead of going away the problem has only gotten worse and the lump feels as if its growing. I am very sick at my stomach . Very nasuas. I feel like I may choke to death. It gags me at times. I have called my doctors office and they told me that they were going to schedule some kind of scan for my thoat. I worried that my thoat my close off. Help!