Re: ?? could I be hyperthyroid
You should also ask for a FT4 and FT3. If either of those are on the high side of normal a raiu scan might be in order. I'm one of the rare hypers who has a normal tsh and sometimes my thyroid hormones are in normal range but almost always at least borderline high. I was finally firmly diagnosed hyper based on a raiu scan and they have caught my high hormones since then on labs. The uptake came back high and really hot on scan. Ultrasound shows a perfectly normal thyroid and normal fine needle aspiration but there are times that I'm hyper as a bed bug. Keep at it.
They should also do a 24 hour urine for metanephrines cause pheochromycytoma can cause the exact same symptoms.
Best of luck and keep us posted.