What would happen if your body release to much adrenaline?

There are certain diseases which cause your body to overproduce adrenaline. The main symptom of excess adrenaline is high blood pressure. Long term high blood pressure can cause Heart disease and stroke. Pheochromocytoma, which is a tumor of the adrenal gland, causes sporadic bursts of adrenaline. These bursts of adrenaline are often mistaken for panic attacks. They can cause episodes of extremely high blood pressure (250/120 or higher) which can be fatal.