My son has been eating only 4-4.5oz the last 3 days..he will be 5 months tomorrow. He used to slam 6oz and not even want to burp until the bottle was empty..now he eats about 3oz, pushes out the bottle..I burp him, eats another oz pushes it out..burp him again and then he just continues to push it out. He's acting normal..it's just weird lol. And I make sure to limit any distractions..is there a growth spurt right around now? I know it's not a leap since we're over that long neverending 4th leap lol