The simple and short answer to this question is no. Having low blood pressure is not dangerous at all. The lower the blood pressure the better. Low blood pressure is usually a sign that you are in great physical shape, while having an elevated blood pressure level usually tells you that not all is well.
When heart pushes the blood trough arteries the blood applies pressure on artery walls. This is known as systolic blood pressure. When heart pumps the blood back, a pressure is also applied – this is known as diastolic blood pressure.
Normal value of systolic blood pressure is 120 mmHg where diastolic blood pressure normal value is 80 mmHg. If you need more information on low, normal and high blood pressure values consult an accurate blood pressure chart.
So why is low blood pressure a good thing? First of all – let us define “low”. Low blood pressure is anything below 120/80 mmHg, but above 90/60 mmHg. If you are in good shape and not overweight that usually means that you are physically active. While you are doing sports out there you train your muscles. And while you train your heart gets in shape too. Guess what? Heart is a muscle as well. Having a well trained heart will put less stress on your heart and artery system when blood flows trough. Makes sense? As your arteries are more elastic (due to being in shape), less pressure is applied on artery walls while heart squeezes and pushes the blood trough arteries.
Having an increased blood pressure however may indicate an underlying issue. High blood pressure is only a consequence of another issue. There are cases of patients out there that have chronically elevated / low blood pressure level, but this is due to their genetics.
Symptoms of high blood pressure are the following. Severe and persistent headache, sometimes accompanied with dizziness, obstructed vision (blurry vision), bleeding from nose and pain in chest. Headache generally occurs only when the blood pressure is really high. Headache typically occurs in the morning (it usually hurts in back of the head).
You can measure your blood pressure with a simple blood pressure meter that you can buy in a drug store near you. You will have instructions on how to measure your blood pressure enclosed in the boxing. Do 3 measurements and assess your results with a help of a blood pressure chart. If unsure, talk to your doctor.