Blood pressure being high does not cause pain. It causes damage but no pain. Blood pressure does go up if you are stressed (worrying about your heart for example). Angina
is a pain in your heart typically caused by it not getting the oxygenated blood flow that it needs. Pains there can also be indigestion
or pulled muscles in your chest.
Since it could be serious signs of a heart problem (that you can't distinguish from a minor ache by looking in a medical encyclopedia) you need to deal with it. Most people without insurance walk into an emergency room and say they think they are having a heart attack
. You may as well do the same thing because you are as likely as anyone there to have that problem.
Don't ignore it - go in as soon as you have that pain again - even if you have to call 911 to get a free ambulance ride to there.