My daughter has not felt good since December. She has been diagnosed with mono, h1n1 virus, and sinus infection since December. It has taken her a very long time to recover from this. This weekend she became worse. She had no energy, muscles ached, spine hurt, tummy hurt, and hip hurt. She gets dizzy and very weak spells. She had a very bad headache. She feels hot on the inside but cold on her skin. She feels very stiff. I am very worried about her. She has no temperature. Her blood tests came back with thyroid hormone abnormal. What could this be?