<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have fluctuating hypertension anywhere from 17898 to 11068 within a few hours. I m on Verapamil 24 bid, Coreg .25 bid and Lisinopril 10 mg bid for hypertension. I used to have very labile hypertension and it would get upwards of 280160 at times. I was dx d with CRPS eventually, which seems to have affected my autonomic system. I have bouts of not feeling well and then my BP will be doing this. Should I be concerned? When is hypertension a medical emergency?  <response>: Hi I did review your condition. Labile hypertension and bouts of not feeling well can be due to pheochromocytoma a lesion of a Chat Doctor. It can be diagnosed by presence of metabolites of epinephrine in urine and an MRI scan of abdomen, If you have not undergone this testing I would advise you to undergo the same.CRPS generally does not cause labile hypertension. I hope this yellowish you all the best. Thank you for using Chat Doctor. 