Some people have no side effects - then there's the unlucky ones. I tried all five types, with horrendous consequences, including splitting headaches, nausea, fainting, vomiting, very painful feet, insomnia - and dangerous intestinal anaphylaxis. I spent a whole year feeling ill.
Strangely, though, my bp is always in the normal range - when measured by the old fashioned manual machines (or wrist monitors) - and only 'high' when it's taken by an automatic monitor.
I just react badly to having my upper arm squeezed too much. I wonder just how many other people were prescribed lowering meds that they didn't actually need?