I didn't vote because I had 2 very different experiences. with my eldest, it was incredibly easy. I educated myself beforehand and even brought my bf'g books with me to the hospital, and had the nurses double check my son's latch every time for the first day or so to make sure it was right. Most of what I had read was that issues often tended to come from a poor latch, so I was vigilant about it. my milk came in quicker than they told me to expect it, my son did great, I had the normal uterine contraction and such with it at first, but I honestly never had pain. son gained weight, my supply could have fed several babies easily, all ws great. I bf my eldest for around 15 months till he ended it.
so the next time I was pg I knew things would be fine. even when I found out I was having twins I didn't worry. But things were very different from the start. I tried and tried and tried but no matter what I did, I just could not produce enough milk. Looking back at it all I think I know what I could have done differently/better, but at the time, looking thru the exhaustion and the emotions, I did my best. I consulted everyone, took smelly fenugreek, pumped on top of nursing, etc, to no avail. I finally had to give up when they were 6 months old and it was really sad for me, but it was the right thing to do, given the circumstances.
I wish your friend luck. I hope she has some good help from a lactation specialist and maybe someone from LLL.