Hello all, I am new to your forum. My primary md put me on Tribenzor to control high blood pressure about a month ago and it has been working well. Within the last few days, my pulse has been racing after any type of physical activity. I did some internet research and thought I might be dehyrated, as Tribenzor is a diuretic and I probably haven't been drinking enough. My dr thinks it's more of an anxiety issue. Has anyone had a similar experience?