I understand you don't want to change before 3 months, but 5 sachets is just too much. Even if you feel better after this time you might need a future tweak which is often the case with HRT and you would probably end up having to change regimes, because 6 sachets... Let us know what the specialist says.
I'm not sure I have understood what you're asking. Have you had your estradiol blood levels tested when you were on Evorel 50 and 100? Your levels could have fluctuated during the transition from one regime to another and maybe that's the cause of your symptoms (manic, anxious, having palpitations). To achieve steady levels is the ultimate challenge, imho.