I have only recently acquired a machine to test my pulse and found it to be 87 at its lowest, it rapidly escalates to 130 + if I stand or do any moving. At the same time, my blood pressure remains low, while seated it's usually 80/ 55 but can drop to 80/45. If I stand, it rapidly rises and then drops again when I lie down. I am curious to find out what could cause this apparent contradiction of high pulse and low Bp. Does anyone else have similar symptoms?