question: I just turned 70 and on oxygen. Even when napping my heart rate rarely gets below 90. Sitting here it is 95 and gets up to 122 - 124 when sweepin, etc. Is this dangerous? I weigh 135 at 5"4 which is the most I have ever weighed. I take Advair and Spriva. My lung collasped on 1-21-2011.