@kmakm - the magnesium tablets and a nightly epsom salts soak may help (who's going to tell you off for taking a nice bath when it's medicinal) - here's me talking out of the proverbial since I have yet to experience the joys of hormone therapy. @arpie has just been put on a different drug - it may be worth following her progress. As for the hot flushes, I think you just have to ride that one out as I believe most of the remedies probably aren't good for us except for the most drastic one and you've probably had your fill of surgery.
You're ahead of me - I haven't had a full night's sleep since 5 December. I don't know how I am going to manage when I do go back to work. Kip in the compactus, maybe.