I'm still new to this so forgive me if this is a dumb question, but one of my breasts is always more engorged than the other. I pumped it today and try to feed her a little more on it, but it doesn't seem to help. I always have a ping-pong ball size lump on the top/side under the armpit as well. It seems like this dissipates on the other side after feeding, but never on this side and it is usually pretty sore but not painful. Is this normal? Anything I can do?