My DD was like that. Dead keen, but gagged and vomited till she was 7.5 months and didnt' really eat anything till 8 months. She was fine, however.

I'm sorry breastfeeding didn't work out for you
Thank you It's hard after a successful breastfeeding experience with my DS for it to all fall apart this time. But it did, and I am slowly coming to terms with it. I'm still trying to figure out this FF thing. It's completely foreign to me and I need to be so much more organised now that I can't just get a boob out!