I've been on HRT for 3 months now (Elleste Duet 1mg tablets). After the first month I felt fantastic! My symptoms reduced massively, and I felt like myself again. In the past week I've begun feeling what I can only describe as PMS symptoms quite severely. Yet I've just finished my period. 
Extreme mood swings, trouble sleeping, hot flushes, anxiety, palpitations, headaches, pretty severe brain fog. I'm a bit stumped. Do I need to up my dose?