CO Poisoning and Monitors. 1. Know the symptoms including headache, dizziness, upset stomach, vomiting, weakness, confusion, and chest pain. Skin is pink or pale and the lips bright red. 2. Most CO is from a faulty exhaust system. Shut off the cabin heat, open windows, land asap. 3. 43 percent of poisoned patients still have cognitive problems a year later. 4. Get an electronic CO Detector.