SJ, wonder if it could be your own natural (background) estrogen levels have dropped further - that great thing that continues to happen as we march further into meno - and Utro doing its estrogen negating effect work (too) efficiently.
Utrogestan is a strange drug - I find the side effects different with each use - always not good though! For example, last time, from night 3 onwards, I woke every night at c.4am with horrid sweats, 'washing machine head' and insomnia- I usually only get that for a few nights. Utro's diuretic effect has also been stronger too, with a parched mouth and drinking a whole pint+ of water every night. Always from 3rd Utro capsule, the 'cumulative effect' of progesterone overload sets in.
The flushed cheeks and full blown flushes perhaps could maybe suggest more estrogen deficiency than an allergic reaction? The diuretic effect maybe, if you haven't had to get up in the night more than once, could you be a tad dehydrated ...
So difficult to work our what our bodies are doing, isn't it.