Hi ... I am a 44 yr old female from Australia. I’ve just been diagnosed with ET after a strange episode of back pain. My platelets have been up at 1000 for most of this year. M I am on aspirin and have recently had irregular bleeding between menstrual cycles. I was wondering if other females with ET have had problems with their cycles. And if this is caused by aspirin. I went to the GP today and he wants to send me for an ultrasound as he believes it is not caused by the aspirin. I’m very confused!