7Shortness of Breath
As a result of high blood pressure and rapid heartbeat, people with pheochromocytoma can have difficulty breathing as well. This means they can feel not getting enough air. In more serious cases, this can be a feeling of suffocation. Higher altitude, obesity, extreme temperatures, and very intense exercise could lead to shortness of breath in healthy people. However, if it occurs for no obvious reasons, it can be a possible sign of pheochromocytoma or other problems. Since this symptom can happen suddenly, immediate medical attention is important to prevent other complications. [7]
