Re: Does overfeeding = gas?
Nope, you can't overfeed a breastfed baby. You are not in charge of the baby's intake when you breastfeed. The baby is. When the baby is hungry, she suckles eagerly, stimulating a rapid flow of milk. When she is no longer hungry and is suckling primarily for comfort, the milk flow slows to a trickle or stops altogether. This is different from bottle-feeding. When a baby is bottle-fed, the adult is in charge of the feeding. The bottle delivers the same rapid flow of milk regardless of whether the baby is sucking for nutrition or for comfort. As the baby stops suckling actively, the adult will often encourage the baby to take just a bit more, to finish the bottle or to make sure the baby is really full.
So, no, you can't overfeed.
But what about the gassiness? I wouldn't blame that on breastfeeding, either, unless you happen to have an oversupply of milk (which can cause a baby to become gassy due to the high lactose content of the foremilk) or unless your baby has some sort of allergy or intolerance to something you are eating (in which case you'd likely see some other symptoms, such as green and mucousy poops).
ETA: did your mom and MIL formula-feed their kids? If so, take their advice with a grain of salt. The way formula-fed babies eat and the way breastfed babies eat is very different, and in addition medical advice has changed a lot in the last generation or so.
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