Hi I Have My Blood Pressure In 89/51 And Pulse

Hi I have my blood pressure in 89/51 and pulse 52 I feel dizzy, and I feel like a vertigo and my dr did a carotid test and came with stenosis and a nanobacteria, that's symptoms that I'm feeling today is for that and do I need to go to ER or wait to my cardiology appt on the 26? Because he the past week send me to do a cat carotid with contrast that the appt will be on this Thursday what I should do. What for the app of the test and wait for my cardiology appt!