Thats why it is so upsetting for me cause I dont know if my SOB is from asthma, my pvc's or stress.? I get SOB from just sitting watching tv.. it feels funny in my chest area, wheezing and coughing... I get this from a run of pvc's!!! Wouldn't myocardial dysfunction show on my tests? I had a echo w/contrast, or the stress ???
It is hard to give you a specific recommendation through internet. Generally speaking, patients with intermittent shortness of breath (SOB) have one of these diagnoses (asthma exacerbation, chronic obstructive pulmonary disease (tobacco), pulmonary fibrosis, obesity/deconditioning or myocardial dysfunction. You did not explain if you get SOB at rest or exercise, or if you can associate it with something else. If your stress test was normal and the pumping of the heart is normal, I would think that is more likely related to your asthma or your weight. Toprol is a beta blocker and, although it is cardioselective, in some patients can produce constriction of the lung air way and increase asthma symptoms. You have to explain better your symptoms in order to give a more specific answer. Good luck.