I clean for a living and find myself getting heartburn while cleaning at times.i have been cleaning 25 hours a week for 3 years. I don't use bleach on every job. Could this be from bleach? A year ago I got an inhaler for exercise induced asthma. I did have that in high school but not for the last 20 years. Do you think cleaning chemicals are damaging my lungs? Should I start wearing a respirator?