Welcome to HCM.
Now you are allergic to smell of paint,thinner..
You have to take antiallergic and brochodilater medicine when there is episode.For medicine you have to consult your doctor.Otherwise you have to stay away from smell of any chemical.you have to cover your nose with a piece of cloth when there is a smell to reduce the allergy
change the profession is wise step.
Prevention is always better then cure.