The first time I had the symptoms was 8 years ago and it was really strange because I felt myself a different person, but fortunately when I went to my doctor , he thought soon it could be the hypothyoidism because my mom had the same desorder. I started to take the pills and everything came back to normal , so when those symptoms came back ( they are like waves, some days are ok, some days are not ok)some months ago I knew my thyroid was low again. Well, now I'm starting the new dose and so those symptoms will desappear soon