Thanks for your question on HCM. I can understand your situation and problem. In winters respiratory viral infections are very common due to cold weather. And the most common cause for worsening of emphysema is viral infection. So I advice you to get done Adult respiratory vaccination with pneumpcoccal and H.influenza to prevent future respiratory infections. You can also enroll yourself in pulmonary rehabilitation program where chest physiotherapy and deep breathing exercise are done. These will strengthen your lungs and improve lung functions. Regularly and timely treatment with inhalers in winters will prevent worsening of symptoms. So better to consult pulmonologist and discuss all these.