Can someone who may have experienced this please describe to me the type of jaw pain that is experienced during a cardiac episode?

I am 28 years old and have elevated cholesterol, insulin resistance with no high bp or early heart disease family history however.

I have been experiencing (on and off) intermittant left shoulder pain very mild going down to arm or just in arm or just in shoulder. The docotr told me I have bursitis and thoracic outlet syndome due to having very large breasts. However, I have had mild twinges of pain in my jaw on the left side not at the tmj sight but more along the line of my jaw....It kind of feels like a bruise and when I touch the tendons or whatever is there when you press down and feel something moving in there, it hurts more.

I guess I just want to know how the jaw pain related to heart problems feels, so I can get a sense of how what i'm feeling compares to it.

Thank you so much

---jo