Symptoms of Pheochromocytoma

Up to 50% of patients have no symptoms. This tumor is found during the investigation of some other unrelated illness.

Symptoms may occur many times during the day. They can also occur as infrequently as once every few months. Symptoms may be brought on by pressure on the tumor (during a massage), medications (such as certain anesthetics and beta-blockers), or intense emotion. Symptoms can include:

• Severe headaches
• Excessive sweating
• Fast heart rate ( tachycardia )
• Sensation of a panic attack
• Vision changes (blurred vision)
• Nausea, vomiting, constipation
• Pounding heart beat (palpitations)
• Chest pain
• Involuntary trembling (tremor)
• Pain in the lower chest or upper abdomen
• Warmth, flushing
• Increased appetite
• Weight loss
• Insomnia
• High blood pressure (either sporadic or constant)
• Tingling, burning, or numbness in the legs and feet
• Shortness of breath
• Muscle weakness
• Anxiety
• Intolerant to high temperature