I was on dianette for about one year, five years ago and seem to get re-occurring thrush also felt sick for about four months while taking it. Also gained weight..
My periods which were never painful before I started Dianette, were extremely bad on the pill, and I was often doubled over in pain. I had pain throughout the month as well. By the way, I was on Dianette for my skin - it didn't improve. In the end I tried Roaccuatane, which worked brilliantly!