Thank you so much, Hurdity, for the reply.
I did try lowering the dose to 100mg last week. I did 4 days on that, and plummeted into a horrible depression. Scared myself actually because I genuinely felt suicidal. I put the dose back up to 200mg and felt better within 48 hours. I don't know 100% that it was the progesterone drop that caused that, but it certainly tied in time-wise. I keep reading about progesterone causing depression though - can it in fact do the opposite in some women I wonder?!
With regards to breakthrough bleeding, I still have a Mirena (been there 4.5 years) so I wasn't having any bleeding anyway, and I'm still not. In fact I only found out that I was menopausal by mistake - had blood tests done and found that my FSH was high and my estrogen was almost zero. I wasn't having any symptoms at all. I'm 46 by the way.
I just have no idea if what I'm doing is the right thing and I'm worrying myself sick thinking about it all the time, and googling, etc. As the 200mg daily of progesterone is causing no adverse effects I would assume I should keep going with it, BUT I just keep reading everywhere that 200 is the cyclical dose, and I should be taking only 100mg on continuous. I can't help thinking that taking double the dose constantly might have some adverse affect later on or something.
Agh I hate this whole getting older thing