Some women find that taking a progestogen continuously like you are doing - gives them continuous low grade pmt like symptoms - anxiety, headaches, tiredness - which can counteract some of the beneficial feel-good effects of the oestrogen. However the alternative is to be on a cylical HRT (or have a Mirena coil fitted) - which means ups and downs of the progestogen and a withdrawal bleed. - you takes your choice! I opted to maintain a (long) cycle even into my 60's because I don't like the effect of progesterone - but I also don't like to have to bleed! For me this is the better of the two options because I feel well for more of the time than if I took progesterone all the time.
Hurdity x