I didn't have any symptoms except for the complete loss of taste and smell which lasted about three weeks. I had no other symptoms, not even the sniffles. Just woke up one day and poof! Couldn't smell or taste a thing. And I even sniffed at things that normally trigger an asthma attack - nothing! That's what made it really weird. Some of the asthma triggers have returned while others still have no effect and it's been over a year and a half.