influenza
"My 2 year old daughter and I were both diagnosed with Influenza A on the 19th. I had chills, upper respiratory symptoms and slight body aches. I have never seen my daughter that sick. She was burning up at 103 degrees, lethargic, not able to keep anything down... Just awful. We took Tamiflu the night of the 19th and at 2am her fever broke. She was able to keep food down and even got up to play a little on the 20th. Today she's nearly 100% herself again. So am I! The only drawback to the med for us is that we both got diarrhea several times.  The benefits far outweighed the side effects."