I have been told by my doctor my blood pressure is too high and he has put me on Amlodipine tablets.I have just bought a Blood Pressure Monitor but when I use it all readings are different for example these are the six readings I have just taken.160/83,149/81,144/76,138/76,138/73 and 131/76 they were taken in that order.My left arm did not move the whole time and I was sat straight can someone explain why the readings got lower