What Causes Breathlessness When Climbing Stairs? Do You feel breathless while climbing stairs, even when you are not doing any heavy physical activity? While mild breathlessness after exercise can be normal, getting out of breath after climbing a few steps may sometimes indicate an underlying health problem. Your heart https://www.tumblr.com/healpedia/832984213525561344/why-do-you-feel-breathless-while-climbing-stairs?source=share