This can all get very frustrating! At one point I finally realized that I am the only person responsible for my health and that all others are simply there to assist me in the process. You don't need anyone's approval to treat your body the way you see fit, you do need a western Dr who can write Rx if you are going to choose that route. As I see things, we have the following options in treating our PCOS:
1. Do nothing ('eh, not great)
2. Healthy eating and exercise for our body (regardless of having PCOS or not, this is important)
3. Western Medicine (this requires finding a good Dr, and that is most of the battle)
4. Alternative Medicine (this requires being a savvy consumer)
5. Combination of all of the above
6. Taking care of emotional aspects (psychotherapy, books, church, however you nourish your spirit)
Western medicine is limited in its scope of practice. It is great for diagnosing and monitoring through blood work and ultrasounds, etc. They are limited to treating a patient with a Rx, surgery, wait and see/monitoring every few months. Some are better at educating than others, just like in every profession there are winners and losers.
Alternative practitioners have more tools in their belt because the culture of their profession is more open-minded. And just like western Dr, some are better than others. Make sure to find out where your practitioner received their training. Find out what requirements your state has for licensing. In some areas, anyone can hang their shingle saying they practice such-n-such. Before you take anyone's advice, make sure you do your research!!! Just because it is *natural* doesn't mean it is safe, after all arsenic is natural. Personally I think there is a lot to be found in Alternative routes, but you do have to be a smart consumer.
What Rx were you given that hasn't been out very long? My understanding is that Metformin, spironolactone, and many BCP have been around for a long time and are safe.
Whether you take a Rx or alternative supplement or herb, it is going to take time, 3-6 months at minimum, before you see results. I have to constantly remind myself this because I want my immediate solution NOW!
The fact that the alternative practitioner wants test$ that are $$$$$$$$$ is a red flag for me. Has that person asked for the results of the blood work your Dr ran? Are you still seeing the Dr that upset you at the start of this thread or were you able to find someone new?
There are lots of options on the Alternative board that you can start without anyone's approval but your own

Here is how I see things, but please spend time investigating for your own body since I'm not a Dr
Metformin is an insulin sensitizer, cinnamon and chromium are just two of the many alternative supplements/herbs that are know insulin sensitizers
Spironolactone helps with hair growth, saw palmetto works for some people too. Both effect testosterone in your body.
BCP, help to regulate cycle and hormone levels. Diet & exercise can have the same effect.
Hang in there!