Hard Fall training causing chills, headache, soreness, etc

Patient: I fell hard on my back after playing basketball yesterday. Today, I woke up with severe chills, dehydration, aches and pains, and a headache. All of these symptoms have lasted consistently for more than 8 hours or have gotten worse. Motrin/Advil dont seem to help

Symptoms: Chills, aches and pains, headache, slight fever, dehydration, all-around soreness/stiffness