My mom has coronary artery disease i think. says she gets chest pain when i stress her?

Needs to be checked: Hard to know what to make of what your mom says - she may be trying to manipulate you. If everyday stress is giving her angina, she has a severe problem and needs further treatment so, anyway you look at it, she needs to be evaluated!

Possible: Stress can cause changes in hormone levels and increases in blood pressure/heart rate which can potentially lead to angina (chest pain).