Hi Vicky,
I think Utrogestan can make you feel like that. I have certainly had a swimmy head. Anxiety can also make you feel like that too. I suspect it’s a combination of the HRT and Anxiety.
Your Dr may be happy to prescribe some diazepam which will help ease the anxiety. It can help whilst your body is getting used to the AD. But can’t be used long term.
Cognitive behavioural therapy is good for anxiety too. Just helps change thought patterns.
It seems like Anxiety is your main symptom, it is totally overwhelming and when it appears out of the blue, it’s really hard to process. Just try and think of it as a feeling that will pass and don’t pay it any attention!
Xx