Very High BP in front of doctor but normal at home

Last time I had mine done at drs I was really anxious and it was 180/90 pulse like you over a 100 but at home with a calibrated machine 118/78 regular, WCS have had it years, they know me now so they don't check it.

I did have to do a week of testing though to prove it.

If your machine is OK as in matches the DR's I wouldn't worry, even people with great BP spike when anxious

Thierry, that's quite common. It's normally known as "white coat syndrome".

I'd advise taking your BP regularly at home (though not obsessively so) and keeping a chart of it to show your doctor at the next visit. ?Most experts recommend taking three consecutive readings a few minutes apart, then taking an average of the three. If it stays around 130/70, as you say, you have nothing to worry about.

You could also ask for 24-hour monitoring, where you wear a cuff for a full day while going about your normal business and it records your BP at regular intervals. However, the problem with that one tends to be that people who have white coat syndrome get nervous because they're wearing the cuff and tend to produce the same results!

If your BP continues to be high when you're in your doctor's office and he/she prescribes medication, then it has to be your decision as to whether or not you want to take it. When my BP went up to a consistent 150/90 when I was in my early 50s my GP prescribed medication. I accepted the prescription without saying anything, but never filled it. I went away and tried lifestyle measures to reduce my BP - I lost about 3kg, increased my exercise levels, and cut down further on salt. As a lifelong non-smoker I didn't need to bother about that, and I also don't have a very sweet tooth (consuming a lot of sugar, including in the form of drinks isn't a good idea).

When I went back six months later my BP was down to 120/80. Thinking this was because of the medication, she continued to give me prescriptions for the next few years (which I continued to tear up) until she forgot all about it! I never told her I hadn't been taking the tablets and she never asked me.

Your doctor is your advisor, not your master or your parent. You are not obliged to take their advice if you don't feel comfortable with it. I suspect you may be in a French-speaking country (like me) where it's usually quite easy to consult another doctor - unlike the UK - so that might be an option for you.

Thierry, they're incorrect in what they're telling you.  As Waffolobill indicates, there is something known as 'White Coat Syndrome' where patients have exactly the same experience as you are having.  Most doctors in that situation will ask you to take your blood pressure twice a day for a week at home.   On the first occasion in the morning take it twice with a 5 minute rest in between, recording the average of the two readings, and repeat in the afternoon.  Once you have your five or 7 days of average daily readings, take them to your doctor.  As Alexandria has indicated, you do need to calibrate your machine though, perhaps by taking it to the surgery with you and checking that both machines give the same reading.  Another way of proving that your BP is normal whilst at home is for your surgery to fit an ambulatory BP monitor which will record your readings over 24 hours.