Don't die of worrying
Thanks gingernut, probably the best advice ever.
So now, several weeks later, back to one half a 5mg fumerato de bisopronol tablet morning and the other half in the evening (beta blocker) and BP remains around 135/85 plus or minus 5%. Don't smoke, don't drink (by mediterranian coastline standards) and go to gym to do aerobics plus weights 3-5 days a week. 70th birthday in six weeks.
Looks like I may make it