Hi Ramona,
Have you tried a Mirena for the progesterone element?
I had trouble with OC pills and so very wary about the a estrogen part of HRT, as I had Terrible constant migraines whilst on OC, but no headaches when using POP (Noriday/Levonorgestrel pill best for me).
I use Estrodot 50mg patch and have a Mirena (same Levonorgestrel) and have had no problems with headaches.
I've had two short episodes of being on antidepressants, one mid 20s and one mid 30s, and I've had anxiety on and off more since 40 when started Peri. It was worse with one of the POP (Desogestrel progestegen) about three years ago where I felt totally mental and off my head, that stopped when I stopped that POP, but the anxiety in general seems to have settled down at the moment. Was thinking it was more to do with my own hormones still jumping about like a jack rabbit, but been worried that it could turn into despeession again.
A lot of ladies seem to be quite sensitive to progesterone, maybe one of them can let you know about withdrawal symptoms.
Ladies seem to have better luck with Utrogestan used vaginally too, how do you take it??
I hope you get some more advice through Ramona, and good luck.
S x