Hi, I am an 18 year old male, normal physique, and I have been experiencing strange symptoms unfamiliar to what I would associate with pneumonia. My heart periodically will start to race, I have the raspiness of coughing like pneumonia, and one night the left side of my throat felt like it was being pressed down on, following with a sharp pain in my left ear, could not get any rest. My Question is, what is causing all of this?