At home my heart rate is 80bpm and when the doctor checks it, it shoots up to 140bpm.?

This is a well-known syndrome called "white coat syndrome" Suggest to your doctor that after the high reading you sit quietly for 20 minutes and try again. Your BP should lower.

My mum is exactly the same! She tries to make sure she goes to the doctors early so she can sit calmly in the waiting room for a while, but still when that cuff goes on she feels 'performance pressure' and it can shoot up. If you explain to the doctor what happens and asks that they try two readings, one when you first go in and one a few moments later after they have done your full review. The second time should be more normal (hopefully!). My mum also keeps a journal of her home readings so if you take your reading before you go and show the doctor your home results they should get a better idea of your real bp. Hope this helps (0: