Hi Improve10, I am a cardiologist and I thank you for writing in. Undoubtedly you have hypertension whether isolated systolic (169/80 mm Hg) or flutuating or persistent. I am concerned here about answer to three questions, namely: A. Whether your hypertension is primary or secondary to some other disease? You hve been hospitalised seen by specialit apparently all othr causes seem to have been excluded exept Pheochromocytoma, discus with your doctor if he has any suspicion he would order suitable investigatons. Secondly B. Has the hypertension has caused any target organ damage on Heart, Brain or Kidney. You have not mentioned about kidney and brain these seem safe so far. You mentioned chest pain and one possible abnormal EKG. Your doctor will agree with me that you need cardiac workup an echocardiography with Doppler examination and after proper control of BP a treadmill test or stress Thallium; depending upon results you have to undergo coronary angiography. C. Hypertension and stress which are evident from our history ar risk factors at times silent for coronary artery disease and presence of these always prompts us to look for other namely: Family history, abnormal lipid profile, diabetes, obesity & sedantary life style and some personality profile. Idea is to diagnose and treat these at the earliest before harm is done. Best Wishes Dr Anil Grover Cardiologist