Do I have COVID, the flu or something else? 2024 symptoms and testing to know.

Breaking out the tissues? It's that time of year! But what kind of sickness do your symptoms point to?

As the weather changes, we can start feeling under the weather too — but while each illness has a typical set of symptoms, it's important to understand you can't diagnose on your own, Dr. Céline Gounder, CBS News medical contributor and editor-at-large for public health at KFF Health News, said on "CBS Mornings" Wednesday.

"If you come in with some symptoms of cough or sore throat or runny nose, whatever it is, I can't tell you if that's a cold, if it's walking pneumonia, if it's COVID or the flu. You do need to test," she said.