Formula fed 11 wk old - not taking enough feeds

[firsttimer08]

Until day before yesterday he was taking 5 feeds of 5 ounces each during the day. Since yesterday my 11wk old son seems disinterested in the bottle. He's been more interested in just playing around or else sleeping. For instance today he's managed only 4 instead of 5 bottles.

At night he normally goes through 2 bottles, but since yesterday he's mostly slept through the night and barely managed to get through one 5oz bottle (which i sneaked in while he was sleeping).

Is this just a passing phase or something to be concerned about?

Since it's only since yesterday that this is happening, I really wouldn't worry! My boy also lost interest in feeding around that age (he's now 22 weeks)... they have so much interesting stuff to discover & enjoy at 11-12 weeks, that they can't be bothered with feeding much on some days I really really wouldn't be concerned, babies' appetites & interest in eating come & go. If this persists of course, that's a different story, but when I say persists I mean more than a week (or maybe even more). The other thing is, he may have put on a bit more weight in the last couple of weeks, & is slowing down his intake now...