Total Thyroidectomy and Anxiety

First time post here :)

I had my thyroid removed in 2014 due to a goitre - doctors thought was cancer (it wasn’t).

I was fine for a few years after surgery and really wasn’t affected. Even after breaking my back and having surgery for that, I totally bounced back - no pun intended.

My issue now is anxiety. I already had it before my TT but since 2018 it’s been on and off unmanageable, it gets worse after a change in my life and the physical symptoms are so severe. Heart racing, leg weakness, nausea, tummy upset, unsettled feeling, crying etc etc. basically my question is, does anyone else suffer with anxiety after a TT and how do you differentiate between overactive thyroid or anxiety symptoms.

Just looking for reassurance that I’m not losing my mind :)