Hi Joesmum,
Yes we do have identical levels of E! I have no tiredness now, things did take a while to settle. For me it was more feeling very faint (could do very little before feeling that I was about to pass out), very foggy head and anxiety./feeling low. Now I feel the same as before BSO and HRT, same energy levels etc. I had been 0n 75mcg for 6 months when some symptoms returned, which Im convinced was low E, I was also ill at the time which can use up more E. After around 6 weeks normality returned, but those 6 weeks were pretty bad. That is when I had my E level checked.
As I think it was Annie said, too much E can also be an issue, made me wake after about 2 hours sleep and not be able to sleep again (which is how I got on Femoston, after about 6 weeks, i.e. once my E levels had built up again after 2 weeks no HRT post BSO). This is when I switched to transdermal.
Maybe as others have said, you need a bit of Testosterone to help with the tiredness.
Rhiner