I have hx of hypertension and am on Lisinopril 10 mg every day. Yesterday I went to ENT doctor for vertigo work-up . I have had positional vertigo for years but it has been getting more intense and more frequent lasting longer lately. My BP in office was 189/114 but he did not seem upset about it as I am being treated for it and under my regular medial doctor supervision. BP has been averaging 120/70 for years now. Last check being a month ago, so needless to say I am a bit concerned. I took double (20mg ) Lasinopril 8pm last night and went to bed. ( Doctor s order). This am before rising, my BP was 135/95. I took 10 mg Lisinopril at 8am. At 10:30am BP was 159/95. At 4pm BP 198/114. I just took another 10 mg. It is Saturday and I am to see my MD Monday morning. Should I be concerned and go to quick care or ER today? The only other symptom is the dizziness which is nothing new.