Hi Georgiegirl
I had to stop my HRT cold turkey a few months ago and for the first couple of weeks I felt dreadful, everything you've said and terrible migraines. It was like my body went into shock! But, It did get better
Be kind to yourself, try to do as little as possible, relax when you can, be as lazy as you can be! It's hard on your mind and body when you stop HRT suddenly and added to this you have all your other worries going on.
Antidepressants can certainly help with the Anxiety, and you don't have to stay on them, they could help during the time you are off HRT and if you feel you need something during this time.
It must be such a worrying time for you and I wish I could give you some further advice other than 'it gets better' - I do hope someone will come along to help there.
Take care, and let us know how you are getting on.
xx