After a checkup and lab work I have discovered that I still have extremely low numbers for TSH T3 and T4 levels. I am waiting on a call from the Dr. To see what i should do next. I felt better taken Nature-throid I tought. My #s seemed to be better with Levothyroxine. I'm confused and apprehensive about what the Dr. will tell me to try next. I have been on Nature-Throid for almost 3 months.