What to watch for: Upset stomach, cough, dizziness, drowsiness, ear pain or infection, swelling of the mouth or throat.

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On a recent day, Dr. Kjolhede saw a child with severe congestion and another with ear pain that was lasting several days.

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The flip-down microphone can easily fold up and out of the way, and considering just how light these are, they can be worn for hours on end (trust us, we tried) without any sort of ear pain and unusual pressure on your dome.

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Is there any ear pain?

CNN: Ear infection (middle ear)

However, he said the symptoms that are associated with thyroid nodules include tenderness in the thyroid area, ear or jaw pain, difficulty or discomfort swallowing, a tickling feeling in the throat and shortness of breath with exertion because the nodule may be compressing the windpipe.

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Have you observed possible signs of pain in your infant or toddler, such as ear pulling, difficulty sleeping or unusual irritability?

CNN: Ear infection (middle ear)