I wondered whether you've noticed that as you go into proper perimenopause - I've got horrible hot and sweaty flushes at night and only two periods in the last nine months - I sometimes get terrible headaches. Right now I'm flushing on and off every twenty minutes and I've had a crushing headache since ten this morning - over thirteen hours. Is that normal or at last not freakishly abnormal? And if normal, was it helped by HRT?