Could anxiety and stress cause permanent high blood pressure? I'm starting to think this is what's causing my dizziness / lightheadedness and headache. I've been obsessed about my heart recently and felt really awful on the weekend with a tight chest and breathlessness, which is back again right now. I don't have a means of taking my BP but not sure if I should go into a&e. I can sort of reason with the breathlessness but the dizziness is sort of new to me, so I'm pretty freaked out.

I exercise nearly every day, and eat resonably healthy, but maybe that's not enough.