What kind of foods do you eat on it?
I eat meat, whole eggs, full-fat dairy (especially cheeses and Greek yogurt), oily fish, nuts, veggies with butter/oil, and limited amounts of whatever fruit is in season. I usually have red meat or dark meat (like chicken thighs) and will occasionally have some white meat (turkey cutlets, chicken breast). Salads dressed with olive oil and veggies sautéed in butter or oil are great ways to get more fat and lots of vitamins.
I really like these websites for general info and/or recipes:
I have lean PCOS too but no IR, and I have never felt as good as I have since doing low carb, high fat. Cleared up my skin too!