I have been having trouble with my heart rate since having a hysterectomy in May...at rest it is usually around 90. My doctor told me that a "normal range" is 60-70 - he said his is 45. I've read tho that normal can be anywhere in the 60-80 range. I think that with yours being 110 you should definitely get it checked out. Does yours "pound" really strong so that you notice it most of the time? MIne does - and sometimes I wake up at night and it seems to be going crazy - like doubling over...and it will take me hours to get back to sleep. Anyways, I think you should see a doctor because prolonged rapid heart rates can cause complications. Good luck.