Dr. Sometime I Am Getting Smelling Problem.whether I Am Post

Dr. sometime I am getting smelling problem.whether I am post to smell any chemical, acid, perfumes, even ant detergents, I am not able to breath. sometime it is very hard and take me into very uneasy situation .doctor said, it is one type of lungs allergy. sir kindly let me know ,what is the exact problem I am getting ??