Exercise
Studies have shown that plenty of regular exercise along with a reduced calorie diet
can reduce symptoms of PCOS and cause weight loss without any other types of treatment or special dietary changes.
But, you may want to consider going to a medical doctor anyway even if just for testing and not treatment. There could be other more serious conditions that cause those symptoms, and it may be something that an alternative treatment can't help. I'm all for avoiding some types of medical treatment if there is a natural treatment available that is clinically proven to have the same effect. Unfortunately, there are still so many conditions which won't improve or may get worse through that route.
Good luck