Re: lost weight and not gaining it back.
Did you have a lot of fluids in labor? That can bump up the birthweight. My son was very sleepy and we had to really encourage his feedings. I had issues with his latch and used a little formula while I was pumping. I saw a LC and got the latch fixed but still had to encourage him to stay awake long enough to eat. Down to his diaper and cold washcloth. It wasn't fun but it worked.
Don't give up, keep working with her. Kellymom.com is a great resource to check out also.
SAHM to my sweet December baby boy.