Is it Every feed? Is it a bug do you think? Or reflux?
If a bug get her seen to check for dehydration.
If reflux then try keeping her as upright as possible after feeds and try and wind her often, a GP may wants to provide mess to help too.
Is it really a whole feed? Try putting half a glass of water or something on a tea towel / floor and seeing if its as much as that - sometimes its worse than it looks. Not always though dd regularly vomited 6/7 massive projectile fountains of reflux vomit.
Didn't give much info this am sorry school run rush. ! Well she was sick wen I was feeding her in bed this morning and seemed an awful lot I've had to change bed and wait for mattress to dry off a bit ? I'd say about 6 oz worth ? Then she did it again an hour later but not as much ? She doesn't seem really unwell like temp or anything she smiling ? She did this last week too and is having explosive get in the bath now poo's :0 but she does these now and again anyway ? She has her bcg tomorrow then next mmr Thursday and she just getting over chicken pox we having the worst time :0