Hi
I have also had this recently quite badly, I thought it might have been the Prog part of the hrt, noristherone, I only take it for 2 weeks, but half way in I started to feel really fed up, then quite down, then majorly irritable.  I also fell out with my husband.  But I felt I was just really irritable/impatient with everyone.  I didn't really suffer pmt, this only started with menopause.
Its not nice to feel like that, as then you feel guilty and then upset.  I do feel for you dulciana.
Pandora