Did pft study dr said i dont have asthma showed no obstruction but when i did inhaler treatment (ibuteral) breathing in pft got better been havin shortness of breath for 10 mths inhaler dont help me .dr said no asthma ekg stress test normal advice?

Review PFTs w/ doctor. In asthma FEV1 is less than 80% but I have seen people w/ SOB w/FEV1 of 90% - with inhaler they improve. Also I have found that FEF 25-75 , though a derived value, may also define a subset of individuals who have reactive airways if less than 90. https://www.verywellhealth.com/forced-expiratory-volume-and-asthma-200994 https://pubmed.ncbi.nlm.nih.gov/8092555/