Congrats to your friend on her baby and hard work!
Is he well now? That must have been a very stressful time for them all with a sick baby

Definitely a good idea to call the ABA - 1800-686-2-686. They can give her lots of reassurance and suggestions.

Does she want to stop comp feeding? Was the jaundice the only reason she started on the formula?

It does sound like normal baby behaviour that has thrown her - as you say, boob boob boob is quite normal at a certain time of day. The best indicator of input is output. At this age you'd expect several poos per day and plenty of wet nappies (6-8 cloth, 4-5 disposable). Weight gains, growth, disposition, etc, etc, are also good signs.

We used to think that babies went through fussy periods and fed more to increase supply and get more milk. Actually, more recent research has shown that between one month and six months of age, babies take the same amount of milk every day. Isn't that incredible? Breast milk is biodynamic and changes as our babies grow, always providing precisely what they need, even without an increase in the volume consumed.

As you know, the secret to supply is demand Feeding as often and as long as her baby wants is the best way to ensure she produces enough milk for him. It is a really good idea to talk to the ABA and even an LC to discuss any particular concerns she may have, especially if there are other issues that have led her to feel her supply is inadequate (ie, that may require medical assistance).

Mothers often find that the constant demands of baby in the arsenic hours leave them feeling empty and insufficient. A lot of the time, however, it's only because they are feeding so frequently, not because the mothers don't have enough milk. It's easy to doubt ourselves, though, especially if we've already been given reason to do so by our carers. What can happen then is that mothers give a bottle of formula, which the baby duly drinks down - and remember it's easier to take milk from a bottle so it doesn't always mean the baby really needs it - and, feeling very full, they go to sleep.

Does she have lots of help & support at home? That's often the best predictor of breastfeeding success Also, sometimes being near mummy will suffice when baby is particularly needy - perhaps a sling would help?