Totally 'normal'. My periods always lasted 5 days, and weren't heavy at all. For the past 2 years they've lasted around 10 days and in 2015 I spent literally half the year with a period. I sometimes had no break between them, other times a couple of days but usually a fortnight's break. I had flooding incidents, have to get up a couple of times a night on the worst nights and my ferritin halved in a few months. Sorry, none of this is supposed to frighten you and I hope it hasn't, but just to show you that 'normal' goes out the window.
My periods sometimes start heavy, sometimes start with pink spotting, and sometimes brown spotting. None of that is anything to worry about though, just a pain when you've spent 30 odd years with predictable, manageable periods.
Maybe you'll go back to what was normal for you for a wee while, maybe the gaps will lengthen further, maybe they will get closer together. You do sort of get used to the unpredictability though.