I was diagnosed with Hashimoto in 2015, mostly I had fatigue, anxiety, tachycardia, panic attacks, and diarrhea. After six months I was diagnosed with Hashimoto's thyroiditis. Severe diarrhea, panic attack, agoraphobia, severe fatigue, and sometimes I used to go to ER because I thought that I would die from heart disease. Of course, nobody told me I had Hashimoto's thyroiditis, I discovered that later on.
What I hated most was anxiety and panic attacks, this happened everywhere and anywhere. Is not that the other symptoms don't count but at least what brain designs for you to keep you safe is really painful.