<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi doctor, Ive been experiencing a cough, headache, and sore throat recently. Do you have any idea what might be causing it?  <response>: Based on your symptoms, it sounds like you might have Mononucleosis. Its a viral infection that is spread through infected saliva and is also known as the kissing disease. I suggest you rest and drink plenty of fluids to manage your symptoms. 