More than a third of men dying between the ages of 45 and 65 die of a heart attack. You should see your GP if you have any one or combination of these symptoms.
Treatment ranges from simply taking drugs to open up the vessels, to a major heart bypass operation.
The BBC is not liable for the contents of any external internet sites listed, nor does it endorse any commercial product or service mentioned or advised on any of the sites. Always consult your own GP if you're in any way concerned about your health.