Hi Lilliejojo.
Just wondering why your GP changed you from Evorol to Femseven if they suited you better. Did you have a problem with Evorel? How long have you been using the patches?
I have been on many types of HRT over the last 10 years & most of them have given me side effects including low mood & brain fog. It can take a while for things to settle down. It could be that this one just doesn't suit you or possibly the strength needs reducing.
Cazikins x