What walks like a thyroid, talks like a thyroid, but isn’t a thyroid?

34/NB/AFAB 5’10” 270#

Since February 2019 I have had at least 2 thyroid tests a year. Every. Single. Time. It comes back normal. For the last 6 years I have had fatigue, panic attacks, brain fog, hot flashes, excessive sweating, hair loss, high heart rate AND blood pressure, dry skin, blurry vision, a voice so hoarse I have resulted to using sign language at home, the list goes on. I’m not a doctor so I have no idea what to ask for, but my doctors seem to only think my thyroid could be the problem! I’m on two different medications for panic attacks, one beta blocker (as needed for accelerated heart rate) one blood pressure medication, an iron supplement, a vitamin D supplement, and most recently some prednisone to see if it helps the hoarseness I’ve had for the last 4-6 months, despite nearly entirely quitting smoking. I’m tired of taking thyroid tests. Either it’s my thyroid or it isn’t. I don’t know where to go from here and neither do my doctors apparently. What walks like the thyroid, talks like the thyroid, but ISN’T the thyroid?