Pain is the number-one symptom. Most toddlers will have a temperature over 100 degrees in the first days of an ear infection. This doesn't always happen, but it's a sign that a small hole has developed in the eardrum and pus is draining out. As horrible as this sounds, the eardrum will heal on its own once you treat the infection. A change in disposition.
Ear infections can cause stomach upset and vomiting.
They can also make it painful for your child to chew and swallow. The virus that causes ear infections can also affect the bowels. A change in sleep habits. That's because her sound sleeper suddenly begins waking in the night and crying in her sleep. An ear infection results when fluid and bacteria build up in your child's eardrum and middle ear.