IPA: /maɪˈæl.dʒə/
KK: /maɪˈæl.dʒə/
Muscle pain or discomfort that can occur in one or more muscles, often without a specific cause.
After the workout, I experienced myalgia in my legs and back.
Myalgia is formed from "myo-" (from Greek "mus" meaning muscle) and "algos" (meaning pain). The word refers to pain in the muscles.
Think of 'muscle' ('myo-') and 'pain' ('algos') to remember that myalgia means muscle pain.