It’s ruining my life.  I am constantly checking it which is making it go really high.  I’ve had a higher than normal heart rate my whole life (born with a hole in my heart that sealed up) I do smoke (it’s hard to kick the habit) which triggers my heart to sky rocket.  
If I’m laying in bed relaxing for a bit my heart rate is around 75-85.  When I haven’t smoked but hanging out with friends and talking it’s about 95 ish.  After I smoke it can get up to 120 and takes almost an hour to go back to around even 90’s.  It’s scary.  

But considering the smoking, are these “normal” heart rates?