Hi, the irritability - it may be that the Norethisterone in your Evorel Conti is not right for you. It's one of the more androgenic, testosterone-derived progestogens. If you want to try another combined continuous patch you could ask for FemSeven Conti. It has a different progestogen (Levonorgestrel), with the same 50mcg oestradiol dose as your current patches. Other than that if you want to stay transdermal for the oestrogen, it would be separate progestogen & oestrogen products, such as Utrogestan capsules with an oestradiol patch, gel or spray. Otherwise the Femoston range (tablets) have what's said to be a kinder progestogen (Dydrogesterone) if oral oestradiol is appropriate for you.
The tiredness - I'd ask about having thyroid, iron, B12, Vit D tested if not done recently.
Wx