My heart beat rate is high, i get cough when I laugh or speak loud. Not comfortable breathing when strucked in traffic jams.i think I can't take deep breath as I feel tightness. My inhalation time is very less. There was some mono oxide smoke test conducted in office and the number was 12 though I don't smoke. I started swimming in pool but I feel so tired to reach the other side of pool. I weight 71kg at 28yeats old with 5ft 3 inches of height. When I rin on tref mill at speed 6 5 my heart rate touches 135, When I climb steps i feel discomfort , the breath rate and heart rate increases. Kindly help me what is it i am suffering from.