Yes, your Thyroid is so important to check. I discovered that I am hypothyroid. My TSH was normal but my T4 and T3 was not. In my past experience, dr's usually only test your TSH. Be proactive and ask for these tests. I think especially those of us with some kind of mental illness have our T4 and T3 (I may have missed one) checked as well as vit b, iron and vit d. This is from my experience.
Just got my hyroids cheked but it was normal. I also have anxiety. Health anxiety in particular. I csnt believe my tests were normal. 2d echo ekg blood test tsh were fine. It was on mymmind i supose but lately i have experienced skipped heart beat and again as always it bothered me. That feeling of skipped heartbeat ***** haha
Oh how I wish it was my thyroid! You are right though, it can cause the same symptoms.