List of diseases that include flu-like symptoms as a symptom. Any major, well-known medical conditions associated with flu-like symptoms are included below, listed alphabetically with photos when available. Any maladies, sicknesses or illnesses with flu-like symptoms 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. A list made up of illnesses like HIV and Syphilis.This list answers the questions, "What risks are associated with flu-like symptoms?" and "What disease can I have if I have flu-like symptoms?"