DS2 is breastfed, is 7 weeks, and has continued to be slow to gain weight after recovering from jaundice that the blood tests showed had cleared at about 4 weeks. It took him this long to regain his birth weight (8lbs). Since then, he has gained some weight but not that much - 2oz a week on average - no indication of catching up on his slow start, and hasn't 'caught' a percentile line yet (dropped from 50th to just above the 2nd so far).
The HV I saw last week (for the first time, at clinic) hasn't panicked, and didn't suggest to do anything different - but she is assuming the continued slow weight gain is still because of the jaundice, and only glanced at the previous weights which show no weight gain acceleration since this cleared. And she thinks that because he is feeding every two hours, he's probably 'catching up', whereas that to me is completely normal frequency! So I don't entirely trust this.
Midwife had checked latch, said it was OK but could maybe be deeper - and I went to bf support group yesterday and the BFC said the same thing - improving the latch could maybe improve things a bit, but doesn't seem to 'explain' the poor weight gain. I was already doing the things they suggested to improve the latch, and it hasn't helped, I don't know what else I can do to make it better. I've had no nipple problems or discomfort.
Other things I have been doing: feeding at least every two hours in the day and at least two feeds at night (sometimes setting an alarm), switch feeding up to four sides, breast massage and compression, and spent all of last weekend in bed 'babymooning'. Nothing seems to be helping.
And now he is showing signs of a growth spurt - unsettled, hungry and dissatisfied with my supply. Normally (I bf ds1 for 13 months) I would chill, feed more often and wait for supply to catch up, but now I am really wondering if I should give formula to take advantage of his hunger. If I start giving formula, I would likely carry on doing some kind of mixed feeding - I suspect this will be the recommendation at the weigh-in next week anyway.
In every other way he seems healthy - alert, smiling - but I am genuinely worried about his weight. I don't want to carry on being this worried about it, and maybe formula would make the difference. 