From Cedars Sinai website http://www.cedars-sinai.edu/5186.html?gclid=CPnX5d3ehJgCFRwwawodjE_RDQ
It does say that over 35, men with chest pain should be checked out right away, so you are probably being cautious and prudent, even though i find it alarming. i keep forgetting how i felt (physically) in my 20's. i would watch for that clammy feeling, though, and if your wife says you look terrible or something.
" A heart attack may be severe enough to cause death or it may be silent. As many as one out of every five people have only mild symptoms or none at all, and the heart attack may only be discovered by routine electrocardiography done some time later.
Not everyone has the same heart attack symptoms when having a myocardial infarction. Common ones include:
About two out of every three people who have heart attacks have chest pain, shortness of breath or feel tired a few days or weeks before the attack
A person who has angina (temporary chest pain) may find that it happens more often after less and less physical activity. A change in the pattern of angina should be taken seriously.
During a heart attack, a person may feel pain in the middle of the chest that can spread to the back, jaw or arms. The pain may also be felt in all of these places and not the chest. Sometime the pain is felt in the stomach area, where it may be taken for indigestion. The pain is like that of angina but usually more severe, longer lasting and does not get better by resting or taking a nitroglycerin pill.
About one out of every three people who have heart attacks do not feel any chest pain. These people are more likely to be women, non-Caucasian, older than 75, someone with heart failure or diabetes and someone who has had a stroke.
Faintness
Sudden sweating
Nausea
Shortness of breath, especially in older people
Heavy pounding of the heart
Abnormal heart rhythms (arrhythmias), which occur in more than 90% of the people who have had a heart attack
Loss of consciousness, which sometimes is the first symptom of a heart attack
Feelings of restlessness, sweatiness, anxiety and a sense of impending doom
Bluishness of the lips, hands or feet
Older people may have symptoms that resemble a stroke and may become disoriented
Older people, especially women, often take longer than younger people to admit they are ill or to seek medical help
During the early hours of a heart attack, heart murmurs and other abnormal heart sounds may be heard through a stethoscope.
Because a heart attack (myocardial infarction) can be life threatening, men older than 35 or women older than 50 who have chest pain should be examined to see if they area having a heart attack. However, similar pain can be caused by pneumonia, a blood clot in the lung (pulmonary embolism), pericarditis, a rib fracture, spasm of the esophagus, indigestion or chest muscle tenderness after injury or exertion. A heart attack can be confirmed within a few hours of its occurrence by:
Electrocardiography (ECG)
Blood tests to measure levels of serum markers. The presence of these markers shows that there has been damage to or death of the heart muscle. These markers are normally found in the heart muscle, but they are released into the blood when the heart muscle is damaged.
Echocardiography can be performed if the above tests do not give enough information
Radionuclide imaging can also be done