Do I still have asthma ?

I got told when I was like 13 or 14 that I had asthma (I’m 18 now) but recently found out it wasnt on my doctor notes and since losing weight I’ve not had no asthma attacks since,

however Doing a small thing like when i exhale its kinda like a little gasp comes Out and I try to do a big inhale it sounds the same except I can’t inhale massively ... I don’t know if I could still have it since I’ve not had any attacks and threw my inhaler away

Is it worth going back to doctors about when I have the chance ? I don’t want to waste time but I suppose it’s not normal to get cut off trying to breathe in and out

( also I don’t get wheezy doing any form of exercise or activity it’s just when I breathe in and out)