I take levothyroxine 75 mcg and Im not feeling good al all. I stay sick at my stomach I feel like Im anxous all the time my blood pressure yoyos up and down my heart rate is up.I had heart surgery May 2010 and I was on 112 mcg Dr droped it to 75 mcg . I honistly feel like dying I feel so bad.i dodnt take my levothyroxing 2 days ago and I felt reall good all day but i took it yesterday and today and Im feeling really bad again.