Could having aniety attacks raise the blood pressure and heart rate? If so, how long does anxiety symptoms last?

BP ; Heart Rate. Yes, anxiety attacks raise BP and heart rate. Such attacks are self-limiting, with the most intense symptoms resolving in minutes and the aftermath in an hour or two. It leaves folks fearful of another one happening. A good psychologist can help you mange them and many people do very well indeed. Peace and good health in our stressful world.