I have mild activity induced asthma. I also think my inhaler either doesn’t help or doesn’t help enough so I basically never use it. I also get the blood taste! However, I usually only get really bad symptoms if I’m really out of shape. If I reduce my load and keep working at it, most symptoms go away completely. Like… After a few weeks or a month depending on how long I’ve stopped exercising for. Maybe that’s specific to me, maybe not. No idea.