Change in eating pattern?

Well if you can give more info it would help - what is his typical entire day intake...like total ounces. How old is he, how much doe she weigh & what is his output like (how many diapers)? Growth spurts cause some pretty strange eating patterns for a few days....so it might just be that. he could also be teething or a little under the weather - it's hard to say. Maybe with a bit more info I could be more help...sorry.