I am a 22-year-old female. Since March, I have had all sorts of medical trouble. It very strongly resembles hyperthyroidism with symptoms including racing heart, anxiety, irritability, trouble concentrating, etc. I've now had 4 sets of thyroid blood work done. The first set indicated I had hyperthyroidism. My GP sent me for an ultrasound and more blood work. This time blood work was fine, but the ultrasound picked up some nodules. My doctor said I only had common anxiety since I was not showing anymore signs of hyperthyroid. I went to a endocrinologist for a second opinion. This blood work came back fine and he did no further exploration of the nodules. He told me to come back in 3 months. I was hospitalized last month for a racing heart that could not be controlled. I was at 140 bpm while resting. Another thyroid test done there showed my thyroid as normal. I have a constant swollen/lump feeling in my throat and my thyroid frequently feels tender. I also have been having jaw pain and ear pain recently, which I saw were symptoms of nodules. I was wondering if anyone out there has had similar experience with nodules and what I should do? I am thinking about demanding a biopsy at my next endo appointment, because this is very uncomfortable. I know nodules are rarely cancerous, but I feel it would be better safe than sorry.