I need to post this to see if anyone else experiences this. Before I discovered I had a hyperactive thyroid, I had bouts with acute heartburn. Once a month, shortly after giving birth, I would get hit with heartburn, get chills, and then most often I would end up vomitting. Within 12 hours I would be fine. I am now on almost no medicine for my thyroid, so there's a chance it's going hyper again. Last Saturday this kind of episode happened again, for the first time since being medicated. I also noticed that my heart rate was pretty high. That night it was about 102 and the next morning, after breaking my slight fever and getting a lot of rest, it was still 108. There is nothing about this heartburn/vomitting thing that seems normal to me. Other than the Graves' Disease, I don't think there's anything wrong with me medically. Is it possible that this is related to my thyroid? Or am I just nuts? Someone mentioned this might sound like my gallbladder?