Athsma

Hi I have athsma and have a question so I fainted a few months ago and think it was because of athsma as had multiple attacks that night and was very weezy all I remember is shaking lots blurred vison then finding myself on the other side of the room surrounded by people they said I fainted and kept saying "I'm OK I'm OK I'm OK". Still wonder why it happened also since then I have had a lot of times when I feel like I might faint but never do just wondering if anyone might have had anything similar thank you