This link covers increasing supply when pumping: http://www.kellymom.com/bf/pumping/p..._decrease.html
I am with the PP that what you describe sounds pretty normal for a young baby, and doesn't sound like low supply. It's very typical for babies to pass out after a bottle because it fills them so full that they are too stuffed to do anything but sleep. Also, formula can sit rather heavy on a tiny tummy!
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"