Seems really odd if it is a bug - she seems absolutely fine, but vomits as she swallows food - I could understand it if she vomited as soon as it hits her stomach. As long as she doesn't eat she is in a wonderful mood, running around, playing.
She has a bit of a cough and I thought it might be that but we have tried it twice now with food and both times she vomited (and it was vomiting rather than just regurgitation) immediately