My endocrinologist took me off synthroid completely, saying I could not take the risk and promised me in eight days I would level off, which I did. When I would have what I thought was a panic attack/anxiety, my heart would race and pound, dizziness, sweat profusely, it was terrifying, in fact I was almost agoraphobic, only in that I wouldn’t leave the house alone, (I was fine with my husband). So the doc told me I would be fine without the medication but would have periods where I would be tired and a sense of depression which he said it was only a symptom. He assured me it was NOT depression, I could live with that, but not the hyper part. I saw him every six months for years. Just a great doctor and man, as well as the psychologist I went to who referred me, knowing this was physical rather than mental. To this day, I know when my thyroid is producing hormone and when it isn’t, it phases up and down……the doc told me to enjoy the roller coaster ride. LOL
All that precisely applies to me at times over the last few months, although I lost the wife a few years ago so have to soldier out on my own when it's not too overwhelming. At other times I am almost fine. Treating the symptoms with anxiolytics is not working very well.
Glad you are doing better!