My experience was the same as yours, Sheila. Horrendous anxiety/panic attacks, overheating and insomnia (to the point where I took early retirement). For me, HRT is what sorted it all out for me. Had I started HRT sooner I’m pretty sure I would still be working - just didn’t realise what was happening.
Could you maybe consider easing yourself onto the HRT route, Theresa? I know it’s not for everyone, however..