sorry for the late reply.
if once lang naman nang yari vitamins lang muna ibigay nila to stimulate appetite.
Vomiting is a symptoms na meron hindi maganda sa loob nya na need nyang ilabas. or sometimes natritriger vomit center sa brain para sumuka siya.
TGE, PED, intestinal problems, nutritional ., toxins etc... are possible suspects.