Today I fed my 8 week old from one breast and then he wasn't hungry for a while/wouldn't feed from the other so it filled up quite a lot. It became really painful, almost like engorgement pain, but only in some spots. Even after he eventually fed from it and the pain reduced, it's still there. I couldn't even pick him up as everytime I touch my breast it hurts. I can't feel any lumps or swelling. What could this be? How can I fix it?