According to WebMD, signs that a toddler might have the flu include symptoms such as a high grade fever of over 104 degrees F, chills and shakes along with the fever, and vomiting and belly pain. Other symptoms include a dry, hacking cough, sore throat, body aches and pain, and extreme tiredness.
KidsHealth.org also suggests to look out for symptoms such as dizziness, loss of appetite, runny nose, ear pain and diarrhea. The child may also be fussy and seem very weak and tired. According to WebMD, the symptoms of the flu in children and toddlers start abruptly, with the worst symptoms happening for the first two or three days. KidsHealth.org states that the flu may last upwards of five days, after which most of the symptoms subside, although weakness and cough may continue for a few more days. If a parent notices any of the above symptoms, KidsHealth.org recommends taking the child to the doctor. It is also recommended to call the doctor if the child develops additional symptoms, such as rapid breathing, a blueish skin color and confusion, as children under two are at greater risk to develop complications, and these may be a sign of something more serious.