Hi doctor, I am 37 years old, I wear a mask regularly while going out since 2 years. For the past 4 days, suddenly I have been experiencing shortness of breath . Observations: chest congestion while doing work. Experience shortness of breath when standing, sitting and walking stages. Noticed some discomfort while doing pranayama with left nose due to mucus. Feeling better while sleeping on bed. After using otrivin spray, I am feeling better for quite some time. No fever, No cold and no allergic condition. Kindly advise