Peacegirl, I'm exactly the same as you. The extra daytime energy is wonderful but it left me way too wired to sleep at night. I got my own oestrogen levels checked and it turned out they were still within normal range so I don't actually need added oestrogen yet - I'm 50 and have various peri meno symptoms but not hot flushes...yet. Will probably give oestrogel another go when/if they kick in.