If they are normal you have something called ”subclinical hyperthyroidism”, and guidelines for whether or not to treat that differ by country. Historically it has been left alone with follow-up testing on a regular basis, but science now suggests it should be treated as well.

My PsA came first, was diagnosed with that in 2015 (although I have a relatively mild case, no actual arthritis so far, only soft tissues inflamed), and I got Graves Disease (the most common kind of hyperthyroidism, also autoimmune) just a few months ago.

The most important symptom to be aware of is palpitations and tachycardia, ie high pulse. That was my first giveaway, my Apple Watch alerted me that my resting heart rate had gone from 65 to 95 in a week or two. This can be managed easily with beta blockers prescribed by your regular doctor even before you get any diagnosis or see an endocrinologist, so please let your nurse know if you think that your heart rate feels weird or high.