Thank you for your query at DoctorSpring.com
I understand your anxiety regarding any injury to lung that may have occurred.
However neither propane nor ammonia will create any lung injury. So i will ignore a small scale, occasional exposure to propane / windex.
Ammonia is highly irritable and it might have caused some irritation to airway mucosa. give it 5- 7 days of voice rest and the funny sensation in your throat should be relieved. any lozenges also may help
Feel free to discuss further,
Dr. Jacob George P