Hello, Thank you for asking at HCM. I went through your history and would like to knoe more about you like your age, nose symptoms, weight, height, family history, etc etc. However, from your provided details, at present I would like to make suggestions for you as follows: 1. Yes, bouts of coughing and breathing difficulty/fast breathing/wheezing (whistle like sound from chest) while exercise and laughing suggest asthma. Asthma is a very broad diagnosis, it can be due to allergies or other non-allergic reasons to. Sinusitis (a sinus disorder) and obesity also worsen asthma symptoms. 2. As you have above symptoms and also sinus problems, I would suggest you to consult a doctor who may suggest you investigations for diagnosis of asthma and allergies also. 3. I usually suggest my such patients spirometry with post-bronchodilator reversibility testing and post-exercise testing to diagnose/rule out asthma. 4. Sometimes exercise related breathing issues can also be non-asthmatic, so it is important that you see a doctor and get diagnosed by him/her. 5. If you are obese, weight reduction will also improve your symptoms to some extent. 6. Control of sinus symptoms with antihistamines (cetirizine or levocetirizine or fexofenadine etc) and regular steam inhalation will also gradually improve you symptoms. 7. Regular physical exercise including breathing exercise and healthy diet rich in vitamins & minerals will gradually improve your lung capacity and immunity respectively in a long run. 8. Please avoid exposure to dusts, smokes and air pollution as much as possible. 9. For breathing difficulty/wheezing/asthma symptoms, your doctor suggest you to use salbutamol inhaler on as-and-when-needed basis or inhaled corticosteroids on regular basis depending upon your spirometry report and detailed examination. Hope above suggestions will be helpful to you. Should you have any further query, please feel free to ask at HCM. Wish you the best of the health ahead. Thank you & Regards.