Bloodwork, xray, ekg, echo, stress test, 24hr holter. had all these tests done and only benign arrhythmia. does anxiety sound right? or possible chd?

Panic and/or apnea: Anyone with a benign arrhythmia should be evaluated for sleep apnea, especially in the presence of anxiety treated with a respiratory depressant such as xanax (alprazolam). If your insurance allows, go directly to the sleep disorder specialist as most doctors are unaware of this connection in my experience.

Not CHD: Missing information is what symptom prompted this extensive work-up in the first place. Assuming palpitations was the reason, the first thing to do is to better define this. Keep a log. Take your pulse every time. Record how fast, how often, how long it lasts and what happens when it stops (sudden or slows down). The answers to these questions will provide more information to start than the tests.