List of diseases that include myalgia as a symptom. Any major, well-known medical conditions associated with myalgia are included below, listed alphabetically with photos when available. Any maladies, sicknesses or illnesses with myalgia as a symptom can be seen below. For any real, further diagnosis of something you feel you might have, please consult a doctor. This list includes information about each disease, such as what risks are associated with it. These illnesses, like Pneumonia and Syphilis include images when available.This list answers the questions, "What risks are associated with myalgia?" and "What disease can I have if I have myalgia?"