Original: Symptoms can include a harsh, dry hacking/coughing, retching, sneezing, snorting, gagging or vomiting in response to light pressing of the trachea or after excitement or exercise.
Simplified: Symptoms can include a harsh, dry coughing, retching, sneezing, snorting, gagging or vomiting in response to light pressing of the trachea or after excitement or exercise.