PCOS period for 1 month

I've had my period for over a month, with a brief break of 3 or 4 days inbetween, but now it has come back heavier. What should I do? I am planning to go to my GP soon but all he does is send me to do ultrasounds and tell me to exercise and eat healthy, which I've been doing.

I was diagnosed with PCOS a bit over 6 months ago and I'm not on any medication. Should I ask for the pill next time I go to my doctor? Has anyone else experienced a similar problem?