I have high blood pressure, and am on Norvasc 5m/day and Metaprolol Tartrate 25mg/day & eve. Over the past four days, I ve had the feeling of tightness near my voice box, almost as if I m being choked slightly. Also over the past four days, while on the meds, my BP has soared to figures such as 166/95. I tried taking an Azor pill this morning instead of the Norvasc, since Azor typically plunged my BP 15-20 points - but it didn t work this time. Could the choking feeling simply be a result of the high BP, or something else (throat infection, allergies, etc.). We have a high ragweed count around here lately, and I ve had some coughing this past week.