I was having shortness of breath for last 4 years out of a sudden this happened.it was mild but irritating and didn't allow me to concentrate. It happens occasionally for few days then persist automatically and have no affect in most of the year. I went to doctor as I was having it again. The doctor gave me mondeslor 400 and formtide inhaler medication. Every test was normal only the feno test was 18 and 94% oxygen went to brain.Today is the third day after it but nothing has changed instead it got worse. I feel shaky , anxious and palpitations as the side effects of the medication. Should I continue the inhaler?