Apologies if this has been covered before - I did a search but couldnt find anything.
I have relatively mild Asthma and a few days ago, I woke up having an asthma attack (it literally woke me up) and have absolutely no idea why. I wasnt near any triggers and hadnt been exposed to any for days. After a double dose of ventolin, it settled down and Im fine now (just a little tired).
Does anyone have any ideas what caused this?