Breastfeeding well, but still lost weight? **Update from weight check 8/30**
My boys had their 2 week well baby check today and they have lost a few more oz even though they eat fine. Jacob was 5lbs 12 at birth, discharged from the hospital at 5lbs 5oz and today weighed 5lbs 3oz. Isaac was 6lbs 10oz when he was born, left the hospital at 6lbs 1oz(lowest weight for him was 5lbs 10oz approximately) and he weighed 5lbs 12oz today. I don't get it. They eat well, have what seems plenty of wet and poopy diapers and are generally good babies...except for their weight. They were fed on demand and can easily sleep 3-4 hours, sometimes 5 in between feedings. Their ped now wants me to wake them up every 2 hours to feed them and we go back for a weight check on Friday. This is slightly discouraging...I thought they were doing fine. :(
Update: We had our weight check today and they still weigh the same. Doc says they look fine, but he's still concerned with how they aren't gaining. He's giving it until Monday and we'll come back for another weight check. He said if they don't start gaining, they may have to be put in the hospital to watch their feeds and check for underlying issues. I don't get it. They are making diapers and are alert and generally healthy, but they keep losing weight.
Update #2 - Jacob has an upper lip tie. His frenulum goes all the way down to the bottom of his gums. I've done a little research and the things that other babies have done when they had this totally matches Jacob's issues. He is always rooting and hungry for something and since we've started supplementing him with formula to help get his weight up(he always nurses before the sup.) his poop diapers are becoming more frequent....more often like a breastfed baby should be....or any baby for that matter. I think the lip tie paired with his huge overbite is most of his problem. I will talk to the ped tomorrow about it and ask who I should see for him to get it clipped and have him check Isaac too. I think I may have solved my own problem.
3rd update - Had another weight check today. I've been supplementing them with formula since friday just so their weight would go up to keep them out of the hospital. Jacob gained 2oz since Friday and Isaac gained 3oz. The ped still isn't happy though because he think they should be up to their birth weight already. I told him about the lip tie on both of them(isaac has one too) and how I think it may be hindering their ability to efficiently get enough milk out to gain weight and he said that he doesn't think it is causing the issue. He thinks that I don't have an adequate supply of milk to sustain 2 babies and he's recommending that I put them on formula. He said he is a big BFing advocate and he can count on one hand the number of times that he's recommended babies be switched to formula. I think that if he was really an advocate, he'd be knowledgeable in breastfeeding issues. I want to research the issue farther and see about getting it fixed, but SO is saying I should be listening to the ped instead of stuff I find on the internet. I will keep feeding them the formula just to get them to continue to gain weight, but I am going to continue to research and see about getting it fixed. I really don't know what the ped expected as far as weight gain. 3oz in 3 days would equal to 7oz a week and that's pretty good. We have another weight check on Thursday, so we'll see how it goes.
Update 8/30 - Another weight check today. Jacob is finally back up to his birth weight and Isaac is 6lbs 6oz. They both have gained a half inch. The doc that we saw today told me that since they are gaining positively now, to go back to breastfeeding and supplementing with formula as opposed to strictly formula which i am happy about. They both have thrush so they have pretty purple mouths for awhile.