My version of 'normal' has varied over the years. When I first started my period (pre diagnosis) you could set your watch by my 31 day cycle - periods were heavy and the cramps excruciating. Fast forward a few years to diagnosis and my cycle was all over the place, stopping for months at a time to the point where my physician would medicate me to induce a period every 3 months. My cycle eventually regulated itself though it was very long, 2+ months in many cases, no cramps whatsoever and a much lighter period when it eventually came.
Then I lost 50lbs and they came right back to their original 31 day schedule, shorter and lighter again than before. Cramps returned (nowhere near as bad as when I was a teenager) and sore breasts, lower back pain came too, none of which I'd experienced before. Then I gained the weight back (all of it
) and they spaced out a little again, going to around 6 weeks. Still light/short and full of cramps etc.
I guess what I's saying with my long post is that there is no normal with PCOS as everyone's experience is different. There are points in time where doctors will become concerned about aspects of a cycle (eg my gynaecologist felt a 'period' was essential at least every 3 months for health reasons so medicated me to ensure one came no matter what!). Some women with PCOS settle into a pedictable menstrual cycle, but plenty don't unfortunately. Have you spoken with your physician?