I've been on it for about a year and a half, I'm at 100 mcg. I've stopped taking it for about 2 months now. I've only taken about 5 pills in that time. I want to know if some of the problems I'm having are from this. I take a lot of other meds so I just skip it without realizing it. I've been having severe depression or severe anxiety, hair loss, lethargy and insomnia and even the pain I'm treated for is worse. Would this be related at all?