Yup, completely normal Ali! Bubs get really efficient at feeding after awhile! My DS usually only feeds off one side as well. Sometimes I offer the second side, but sometimes I think he only takes it cause it's there, or for comfort, rather than because he's hungry.

As long as your DD is gaining, giving you lots of wet and dirty nappies and is content between feeds, then all is fine . Sounds like you know what to look out for - well done mummy Ali!