I was diagnosed with low thyroid and Hashimoto's 1 year ago following an 18 month "mystery illness" with extreme headaches, earaches, fatigue, panic attacks, occastional nausea and weakness, etc.. My thyroid antibody levels are currently at 1000 and keep increasing each month, according to my Endo. I have been searching for a cause for the increase as I still suffer (on a much smaller scale) from the symptoms of my mystery illness. So far I have eliminated all stress from my life and have been eating gluten-free for a couple months with no change. Just recently it was discovered by my dentist that I have a fractured tooth root (with previous root canal) which may or may not have been infected for the last couple years. My question is....is it possible that this infected tooth, which I never even new about, could be the cause of my mystery illness or cause my antibody levels to increase?