Your doctor believes you may have heart artery occlusions and that condition will cause the symptoms you describe.
A stress test is to inject a dye substance into your blood stream and the medical equipment monitors the flow of blood blood (perfusion) through the heart tissues during a period of rest and and period of exertion.
There will be a doctor on standby monitoring vital signs and other data and will know if and when the test should be discontinued. Also, you are able to stop the test if there is pain or fatigue.
Thank you for the information. It's just scary for me, that's all. I know that the anxiety's are way up now, and that don't help. I just am new to all this. and I know I'm not the first and won't be the last .
Well It is time to start the coffee, so thanks again.
God Bless , Hammy_41