Not always: Cardiac arrest and or an arrhythmia do not always have warning signs. Every person is different and presents in different ways. A heart attack classically presents with some combination of chest pain, shortness of breath, nausea, vomiting, sweating, shaking heart racing or none of the above.
Answered 11/4/2014
3.6k views
Only he knows: if he did. There can be warning signs or it can be sudden without much warning.
Answered 11/4/2014
3.6k views
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4 doctors weighed in across 2 answers
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