Hello, i have a 3 year old daughter, once a year she gets a stomach flu and this year it has already happened, last night she vomited up a small amount of food and liquid and then clear liquid with bits in it a while later, she then went to bed and slep

Likely viral...: Your daughter is lucky that a stomach virus is not something that she has to experience often; however, there is no "limit" that is set in stone... meaning "once per year". With exposure, there is potential to become symptomatic. Things like started school/daycare tend to increase the amount of illnesses one experiences due to increased exposure. Clear fluids, rest to treat. If persists - be seen