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.
This happens when blood pressure drops rapidly during changes in body position â usually when changing from sitting to standing â inducing classic signs that the blood pressure is too low, like dizziness, blurry vision, and fainting. Other important causes of low blood pressure include: 1  Heart problems that cause low heart rate, diminished heart strength, or a decrease in the amount of blood supplied to the body.  Normal changes associated with the first and second trimesters of pregnancy.