10 Symptoms of Pheochromocytoma

4. Severe Headaches

Signs of a general headache are described as a dull ache or general head pain, a feeling of pressure or tightening of the head, and tenderness to touch on your neck, shoulders, and scalp. However, if you are experiencing a severe headache, it borders on migraine symptoms. These include severe pain and throbbing or pulsing in the head on one or both sides. You may experience sensitivity to light and sounds, blurred vision or a feeling of seeing lights behind your eyes. Lightheadedness, nausea, and vomiting also sometimes occur.