Why is nausea a symptom of a heart attack? what exactly causes the nausea?

Heart attack: When heart attack causes low blood pressure nausea often is the result. If the attack causes bradycardia, nausea likewise often happens.

Variable: Nausea is not a major one, but with right coronary, abdominal pain and nausea may occur. Similarly with low blood pressure or pulse nausea can occur.Symptoms: chest and neck and left arm pain can all occur elephant sitting on your chest shortness of breath fatigue anxiety fear some are asymptomatic signs: cold clammy low pulse rate, or fast irregular sudden death, .