 [ Symptoms ] it feels like my heart is racing but my pulse rate is normal and i feel out of breath what could this be  i do suffer from anxiety i have taken natural supplements that promote relaxation and that usually helps with my anxiety recently my heart has been acting this way and i have tried taking the supplements thinking its part of my anxiety but nothing changes [ Disease ] i would ask your doctor if it is possible that you have panic disorder to me it sounds like you are having baby panic attacks but i am not an expert i have had panic disorder for about five years and that is how mine started