I am rather surprised at the OP's post. Says she has just returned from seeing her GP - and that is shown at 8.00 pm on a Sunday. Where in GB does she get a Sunday evening GP appointment??
Usually, when a GP gets a higher than liked bp reading from a patient, they send the home telling them to take their own readings in their own home, for at least a week, sometimes a fortnight, readings morning and evening - three each time and lowest to be listed. Then these readings are returned to clinician and an average is taken.
So very many people take BP medication. Once it has been sorted out for that patient, then they have little or no side effects. Yes, some bp medication (particularly the cheaper pills), can cause problems. When I started I developed a dreadful cough, which totally shook me at each bout. This was proved to be due to the 'piril' bp tabs I had been prescribed. But this was over 20 years ago, and I was changed to other bp tabs, which work extremely well and have (as far as I can feel), absolutely no side effects - and keep my bp pretty good.