Lately Isabelle hasn't really been interested in her bottles at all. She hasn't finished a full 6oz…

Lately Isabelle hasn't really been interested in her bottles at all. She hasn't finished a full 6oz in days. She'll eat 4oz, and then start spitting it out as if she's full, but then is hungry an hour later, but still refuses to take a bottle. I'm afraid she just wants baby food and no longer wants the formula, but she still has six more months before we can introduce her to any kind of milk. What can I do to get her to finish her bottle? I can't continue with the hourly feedings and wasting formula.