I'm so glad I found this really useful and informative forum. I have a question that I hope someone can help me with. I do have an appointment booked with a private meno clinic as my gp practice is not very helpful but have to wait for a month or so to see someone. I am 68 and have been on elleste duet conti for about 11 years and, up until the last few years, had no problems. I have since experienced some bleeding and a couple of times a year, quite heavy. I understand from reading posts that the culprit could be progesterone if it is no longer suitable for me or I have developed a problem with it. I don't have any other symptoms but get fed up with the often unpredictable lengths and unexpected bleeds. Strangely, I can have a perfectly normal day and suddenly a bleed in the evening which can be short and gone in an hour or so. I know hormones are complex so is this sudden short bleed due to some hormonal imbalance? Also can you suddenly develop a reaction to progesterone when all was fine before? I am hoping that someone out there has had a similar experience. I am thinking of switching to cyclical from conti after my appointment.