Hi Trixie. I get much more tired on hrt than off it. I've reduced my dose to 1 or 2 pumps of gel but if I skip a day I have much more energy.
All I can say is oestrogen does not provide some of us with more energy, quite the reverse, I'd say. I'm trying to reduce it as low as possible without my VA giving me hell. It's annihilated my anxiety though, probably as I'm too knackered to care what happens, lol.
Sorry to be unable to help. Maybe it will improve in time for you?
BTW, what is BP?