I’m so lucky as I only need radiotherapy after my recent removal of invasive ductal breast cancer….i have been told I have to take LETROZOLE for 10 years but because of my current health issues (heart and lung) and having seen my dad struggle with repeated infections due to low white blood cell count caused by blood cancer before he passed away last May I am concerned about the potential side effects of this hormone treatment…I already have hair loss and osteoarthritis and menopausal hot flashes, dry skin and brain fog, so although I am grateful for a drug which could prevent my cancer returning I am concerned …any advice? Thanks