Re: Is this teething?
Teething or an ear infection would be my guesses. You might want to stop by the doc's office and rule out the ear infection possibility.
Good for you for being so open to increased nursing! There's nothing like it for solving a baby's problems.
ETA: I went back and reread your post and realized that your baby is only 4 months, adjusted. That suggests a 3rd possibility: the 4 month fussies. Very common, associated with an increased frequency of night waking.
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!"