Hi Clarella, sorry to be so late replying, had a couple of weeks or so without checking the forum. Thank you for the update on the burning & I'm so sorry to know you've had a BC diagnosis to deal with. That's especially tough in menopause, but sounds like you're doing well

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That's very interesting the link between the burning being worse when your TSH isn't optimal. What a pain that Tamoxifen messes with your thyroid too.
I haven't noticed an association between the burning & thyroid levels, but mine are not what you might call optimised as I have chronic probs with T3 & can't take enough to keep my T3 consistently within range without feeling over-treated.
The burning I get definitely doesn't feel anything like Raynauds. At its worst it does feel slightly painful & is always weirdly unpleasant, but not the pain of Raynauds, which for me is much more full on & comes towards the end of the classic 3-phase colour changes with vasodilation.
I haven't seen the book you mention, but if you have time to briefly summarise what the author says about cooling down I'd be interested to know & it might be helpful to others too. But please don't worry if you don't have time.
Thank you for the tip about clenching fingers & toes to help relieve the burning. I'll definitely try that, though mine affects the whole arm, not just hands, also sometimes legs, often feet & sometimes rather bizarrely & more recently - inside the mouth. I also get numbness in the arms & hands with it, usually only one side, but sometimes both, also slight nausea sometimes. It mostly strikes in the small hours, so I don't want to be getting up & doing anything more vigorous to boost circulation as I struggle badly with insomnia & getting out of bed means an end to any chance of sleeping again.
So did you feel well on Utrogestan? I'm highly progesterone intolerant & Utro made me excessively hot & wired among other horrible effects, I assume either because of its thyroid boosting activity or the way it opposes oestrogen's actions. Or both! Either way, I could not continue with it on any dose of oestrogen. It's astonishing how different we all are when it comes to the way progesterone affects us.
That's very promising that you're coping so well without HRT

& well done on the exercise front. I hope the Radiotherapy goes well.
Will try to PM you later.
Wx