Upper abdominal pain can be no big deal—or it can merit a trip to the ER. Here's how experts say you can tell the difference.

Upper back pain may be focused on your neck and ... Call 911 if you experience chest or back pain with the following symptoms ...

Upper respiratory infection (URI) symptoms include a cough ... or the two lumps of tissue on each side at the back of your throat. Tonsils are part of your body's lymphatic system, helping ...