Next week, I have an appointment for the above test due to intermittent symptoms of heart failure post-ME, a family history of cardiac issues, and the recent scheduling for double by-pass surgery in a sibling. I believe my unstable blood pressure, extremely high heart rate and arrhythmias are due to autonomic dysfunction (POTS), but have agreed to the test because . . . . what if I'm wrong? Here's a link that describes the test: https://www.medicalnewstoday.com/articles/265579.php If the cardiac diagnostic clinic is not familiar with ME, my test results may be misinterpreted -- specifically that I am merely deconditioned. They offer the rehabilitation program for patients diagnosed at our local POTS clinic, which means an exercise program. Depending on the day, I could reach the target heart rate immediately upon standing. My test could be over before it even gets started! Or, I might do OK. My concerns are twofold . . . that the doctor/technician looks for the right things based on cardiac abnormalities that have been found in ME patients, and that I might be pressured into exercise rehabilitation. At appointments, I usually don't bring out ME documentation unless I feel I need to. But I do like to have it on hand. Can anyone recommend suitable research reports to take along, just in case? What would be the best/most recent document to take that describes why exercise is not the answer for ME patients? Also, I'd be interested in hearing other members' experiences with this test. Thanks.