OMG MY TATAS!!!!

My little man feeds every 1.5 hours if not every hour during the day. How the heck am I supposed to pump and feed him? My tatas are sore just from the volume of sucking. His latch is just fine. He eats for 10 minutes on each side. He is gaining weight and is right where he needs to be but I would love to be able to pump some extra. Is anyone else having this issue? When I do pump I only get about one oz per side.