Re: Reflux? OALD? Gas?
Yes, it's really common for young babies to have issues with pooping/tooting. Remember, until a few weeks ago your baby never had to do it- so figuring out those puzzling new sensations can be a pretty upsetting thing! OALD and oversupply can definitely exacerbate gas, but it sounds like you're already doing a minor form of block feeding (i.e. using one breast per feeding or for as many as several feedings in a row), you're reclining while nursing, and you're not pumping or doing anything to perpetuate the oversupply- so just keep on keeping on and this issue should pass.
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!"