I am now 5 weeks post cardiac ablation and for the past two weeks have suffered with breathing problems and a dry, non-productive cough. I saw my PCP last week and he put me on Medrol for a 6 day period. I also had a chest x-ray which showed nothing. Today I saw my regular cardiologist (not my EP), and he told me it sounds like asthma. Never had this in my life! He gave me a prescription for a Spiriva inhaler, but I'm scared to death to use it because I'm afraid it might put me back in AFIB. He said it might, but that the strain I'm putting on my heart because I can't catch my breath might do damage too. Please, anyone - have you used the inhaler with AFIB?