How do I know whether I have angina or coronary artery disease?

Symptom vs disease. Angina, or chest pain or angina equivalents (there are many) are a symptom usually of heart disease. Coronary artery disease, cad, is a progressive disease: plaque builds up in the arteries of the heart and this can lead to blockage (s), ischemia (insufficient blood flow) which can cause pain or angina.
In specificity. Angina is chest pain due to diminished blood flow to heart muscle; maybe from constriction or blockage. Coronary disease is abnormality in coronary artery itself. Heart disease is abnormality in any part of the heart.

Related Questions

How do I know whether the pain I'm having is a heart burn or something more serious like angina or coronary artery disease?

It's difficult. Depending on the nature of the pain, additional testing such as a stress test could be useful to help figure out where your chest pain is coming from.
Given your age. And female sex it's most likely heartburn but get further evaluation with your physician.

What age is associated to trigger coronary artery disease? I have angina especially in afternoons. BP is 68-112. I scare to have coronary disease.

No age. There is no age for coronary artery disease. That fact that you are young makes it less likely but not impossible. Other factors play into account. Chest pain can be from acid reflux, chest wall (muscles and joints), heart, lungs too. So you need to check this out if it persists.

45y, f having rapid heartbeat and high BP sometimes, diagnosis unstable angina II b, in angiography test having mild coronary artery disease. Need advise?

Medical treatment. Without significant blockages on catheterization you would fall into a category of medical treatment for your heart problem. This means medication, exercise, weight loss, smoking cessation, diabetes control, high cholesterol treatment, etc.
Coronary artery. Medical therapy, risk factor modification, and close surveillance by your physician (s) is indicated if only mild coronary disease is present.

Pectoris atherosclerosis congestive heart failure coronary artery disease dilate hypertension myocardial angina pectoris, what are these?

Cv words. These all refer to cardiovascular particulars. Pectoris = Chest. Atherosclerosis = vascular wall scarring from cholesterol deposit. Coronary artery disease = narrowing and atherosclerosis of heart arteries. Dilate = expand diameter. Hypertension = high blood pressure (within arterial network). Myocardial = heart. Angina pectoris = pain of chest from coronary artery disease, lack of oxygen to heart.

What can lead to coronary artery disease?

Multiple causes. High blood pressure, diabetes, obesity, smoking, genetics, cholesterol, are among the multitude of causes noted.

Can children have coronary artery disease?

Yes. With explosion of obesity in children, early coronary plaque is possible by their 18th birthday.
Unlikely. CAD is secondary to cholesterol and calcium building up in the walls of arteries. While it is possible to occur in children or young adults due to hereditary or congenital problems, it is overwhelmingly a disease of middle aged to older adults.