My four-month old baby boy seems to have taken a step back with his feeding over the past week or so. He is formula-fed and was averaging 30-33oz per day. All of a sudden he seems to have dropped to 28-30oz per day. I'm not unduly worried as he's still gained weight this week (albeit less) and is following his growth curve well. But I'm just wondering why this might be?
He has feeds at 7am, 10-10:30am, 2-2:30pm, 5pm, 6:15pm and 10:45pm. I make up 6oz bottles for each feed and where he was finishing one or two of these per day he's now only taking 5-5.5oz max per feed. The 5pm and 6:15pm feeds are essentially one feed split into two but I make up 4oz bottles for these two and occasionally he takes all of it. We always struggle to get him to take much at 10:45pm. He had been sleeping through until around 5:30am but last night woke every hour. He hasn't been having a feed during the night.
I would have thought that as he has not fed all night he would be really hungry by morning and down his breakfast, but he just doesn't appear to be that hungry. This morning he took 5oz then just wasn't interested in having any more. I've tried using a faster-flow teat in case he was just losing interest because the milk flow was too slow, but it hasn't had any effect.
He does tend to go off his food a bit following any vaccinations and he had his 4-month jabs last week so perhaps that could be a factor. Or maybe he's teething and has gone off his food a bit for that reason? My health visitor said he may just not have the capacity for increased volume but he's taken more in the past than he's taking at present and has been fine. She said if he really can't take any more volume then he may be a candidate for early weaning. I don't really want to wean him just yet (he's 17 weeks) as my husband has a history of eczema and hayfever and as my baby is bottle-fed I'd like to avoid any other potential source of him developing allergies.
Has anyone else had experience of babies suddenly feeding less than they had done previously? Sorry for such a long post!