I am an 18 year old female who had my thyroid removed in 2014. I had hyperthyroidism at the time and after my surgery I developed hypothyroidism symptoms. I took my cynthroid 175 mcg regurarly for about 7 months. But I haven't been taken it at all since May of last year. I've gained almost 40 pounds since my surgery and my energy level has plummeted. Is taking my medicine as important as everyone says it is?