m 39 years old male and in good shape use to play sport before my accident ,about 2 years ago I had head injury (
concussion) I suffer from a few different thing because of that but one of my symptoms is a fast heart rate, My HR and BP was normal before the accident my BP still runs normal but not my heart rate, at rest its, sitting lying down it will usually drop to about 100, sometime time it goes a little lower 85 to 100 some it doesn't come down to 100 it stays 100-115, when standing or