Whenever I fall asleep and wake up, I have extreme difficulty breathing - tightness in chest, wheezing, coughing a loud, croupy cough - I use my nebulizer with Albuterol and Iprapropium and am better right away. Sometimes I get short of breath just walking from my backyard to the front door, or even while taking a shower, or other light activity. Don't know whether this is simply asthma, which has been diagnosed, or maybe I have congestive heart failure? my other symptoms are extreme fatigue, swelling of my legs and ankles. I recently had a stress cardiogram and echocardiogram, and according to the doctors, these results were okay. But I have also had a recent chest X-ray which shows one part of my heart is larger than the other. Also, my paternal grandmother died of heart failure at 63. I'll be 62 in the Spring. Thank you.