I'm on POP for really heavy and painful periods (tranexamic acid didn't help). Pill seemed to work for a while. Started getting spotting, 12 months+ after I started pill. Had a scan, I have a large mass of fibroids. Now waiting for a gynae referral. Past couple of weeks, however, I've been bleeding heavily again, experiencing more pain, and am passing clots. Does anyone have any experience of this? Don't want to call gyane nurse unnecessarily. I'm so fed up with it.