If someone is having panic attacks for what symptom or reason would you ever test for pheo?

Several symptoms: One might check for pheochromocytoma when the person also has hypertension that's hard to control with BP medications. It's a rare tumor and most hypertensive people don't have it -- but most people with plain panic disorder don't have uncontrolled hypertension. Sudden onset headaches, abdominal pain, weight loss, etc could be others. Plus family history of pheo, neurofibromatosis, or men-ii.

Many symptoms...: Many symptoms of panic attacks overlap with symptoms of pheochromocytoma. High blood pressure, palpitations, rapid heart rate, sweating, headaches, pallor, etc...