Big hugs - we have all been there !
Apologies if I get this wrong, but aren't you in peri and taking sequential hrt? If so, it's possible your own hormones are just kicking in (or out) a bit more than they have recently. It's probably just an annoying blip and will resolve itself v soon. Do you take separate progesterone?
Co-incidentally, only today, I was talking to my gp who was saying how hrt when you're still peri menopausal can sometimes create its own issues as it tops up but doesn't totally control your hormones. Hopefully your system will re set again soon.