I am a 30 year old man. I am suffering from mitral valve prolapse and mild regurgitation. You take propranolol 40 mg to treat my anxiety symptoms, shortness of breath, dizziness etc. The problem is that I have hiatal hernia in stomach also. I am facing severe shortness of breath from last 2 days and after every 2 seconds I feel" air hunger" and lack of oxygen. I'm taking long breaths from abdomen and this puts a tension or effort in my stomach muscles. Now, I took duolin levosalbutamol nebulizer solution but still not much relief. Now, please let me, what should I do? Will my propranolol interact with levosalbutamol?