Hello Sir Pls tell me for the problem is that I consistently 2 to 3 minutes to speak on the breath is heavy and seems to be running faster, or rather seems to thrive, there is no question of anything else to do, so exhaustion is too hard to climb that ladder, the basic point that the last 3 years and am accustomed to Corex Couf Shirf initial 2.5 years of regular 1 cuff Shirf (100 ml) was take the previous 6 months as deadly Sirf 3 has been 32 years of my age, my weight 76 kg and a length of 5.7, Please Advise,