HELP!! - Increasing Milk Supply

I have PCOS and I ended up getting hypothyroidism right after I got pregnant, toward the end of the pregnancy I developed gestational hypertension, and I hemorrhaged after delivery. All of these things decrease your milk supply and now that my little girl is 4 weeks old, her demand for milk is higher than I am producing right now. Any tips or product recommendations for me to increase my milk production? I still take my prenatal vitamins and an iron supplement, plus I started the pink stork lactation supplement as well, but no luck in increasing production yet. Please help! Any advice would be much appreciated.