Endocrinology Questions? Ask an Endicrinologist for Answers ASAP
Your GP can order the standard bloodwork for the thyroid.
Then if anything is abnormal, a referral to an endocrinologist would be appropriate.
Home tests aren't going to be accurate enough to make any real determination about what to do. So getting the blood testing when available (hopefully in a couple of months) would be best here.
I sincerely hope that I have helped you, and that I have earned my 5 star rating today! Please remember to rate my service by selecting the 5 stars at the top of the screen ( rating me now does not close your question). We can continue here until you are satisfied, simply use the reply box and let me know. Thank you!