 [ 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 ] what kind of cyst you will need to re post your question with more information but basically there are no universal time parameters for the formation of any type of cysts