Arthur Blank, a co-founder of Home Depot and owner of the Atlanta Falcons. His familyâs foundation has donated $20 million for community improvements near the Falconsâ new stadium. Credit Kevin D. Liles for The New York Times.
A diagnosis of unstable blood pressure can be caused by a multitude of factors, illnesses and disease processes. Unstable blood pressure can provoke a variety of symptoms, including but not limited to dizziness, shortness of breath, instability, fainting and erratic heart rhythms.
Some causes that may lead to changes in blood pressure readings include: 1  Recent intake of caffeine, alcohol or cigarette smoking. This potentially causes an increase in your blood pressure.  When you have your blood pressure taken, rest in a comfortable and relaxed position for at least 5 minutes, if possible.