I have been doctoring now for over five years for high blood pressure. It ranges from low 140 over 74 to 178 over 110. My meds are: Metoprolo 200 mgs daily, 2.5 or amlodipine and most recent, 50 mgs of spironlactone. I have had every test imaginable from kidney, thyroid, liver, urine just to name a few. Any thoughts of what could be causing this? I have even had brain scans and MRI / MRA s/.