I think we all suffer with “White coat syndrome” to some extent, I’m not less than anyone else.
I don’t think the BP you gave is any cause for concern, I had one medical where my BP was 145/94 and there was no query, after all, on the D4 it does give a generous limit of 180/100 which is rather high.
I find that having my own BP monitor and taking a record of my BP readings for a week before my medical gets me used to the procedure and gives an idea of what your BP is without the pressure of white coat syndrome.
I show this record to the doc and while it’s not accepted as gospel, it goes some way towards showing what is your norm.