Completely normal!! You are right... you know your baby best and you are following her lead. Those growth spurts/developmental stages (whatever they're called!) happen, and they don't last forever. With DS it happened at 6wks, 12wks and around 20wks and lasted a few days feeding every 1-2.5 hours. Just go with the flow, and don't worry about all the well meaning advice because you know what Evie needs better than anyone.