All I know is that during a yearly blood work check, my thyroid checked low, and I was prescribed Levothyroxine. Then a later test showed I needed more of it, so I now take 50 MCG a day. Is that good?

I have bipolar and was feeling really tired. I take Wellbutrin, which was doubled at some point. I am able to lose some weight and haven't noticed any particular signs associated with low thyroid levels. I'm not feeling as tired as I once was.