My girl is drinking goat milk also. She was drinking A+ too but I mixed with goat milk when she is 1.5 years and now she drinks 100% goat milk. Even she has eating problem but she still looks Ok. I think the goat milk helps a lot in this issue.
You may buy a small tin of goat milk first. Use one scoop of goat milk instend of one scoop of the milk powder that you used to take. Let the baby try for few days to 1 week. Then add to 2 scoops, same few days to 1 week. Then add to 3 scoops etc. If the baby refuse to drink, then change back to 2 scoops or back to 1 scoop. Let her get used of the taste. By and by, after 3 scoops, you may try to give her 100% goat milk. I did it to my girl as well and it took 4 months to change to 100% goat milk. I am buying this goat milk with a BK mother. Each time 1 case and she order for me from Taiwan. Takes 3 days to send it to my office. Anyone interested, I may introduce that lady to you. Just sharing, not hard sell.