Have you tried HRT and did it give you any awful side effects? I've been on it for 6 months. Only a low dose as a result of perimenopausal symptoms. About 8 weeks ago I started with headaches and dizziness. It has gradually got worse. Every day I am dizzy now and have constant pressure head aches and I have been referred for a head scan. At first I was relieved, now I am petrified. No mention has been made of the headaches and constant dizziness being a side effect of the HRT. However I am trying to make myself feel better hour by hour at the moment and wonder if it might be a side effect of the HRT? Anyone had any god awful symptoms when on HRT that didn't necessarily appear straight away?