(See How Catalytic Converters Work for more details.). Controlling the engine is the most processor-intensive job on your car, and the engine control unit (ECU) is the most powerful computer on most cars.
â¢ Accidental poisoning is one of the leading causes of GI ulcer disease. This can be from plants (for example, toxic mushrooms, castor beans, or sago palm), pesticide or rodenticide toxicity, chemical poisoning (often with ethylene glycol or phenol), or heavy metal poisoning involving zinc, iron, or arsenic.
Peptic ulcers, sores in the lining of the stomach or upper intestine, cause abdominal pain, gas, and more. Food poisoning can cause abdominal pain, diarrhea, nausea, vomiting, fever, chills, and weakness. Diverticulitis is a condition of the colon and causes pain, cramping, infection, bleeding, and other symptoms. Lactose intolerance, or the inability to digest lactose, leads to gas, bloating, and other symptoms.