I am a 29 year old female. I am healthy and work outregularly. I get a mild jaw pain that comes and goes. I haveno arm or chest pain. Could it be heart attack?

Least likely. Although jaw pain can be a symptom of a heart attack, i think you would know by now if that was the problem. There are much more common causes of intermittent jaw pain. See a dentist for an evaluation of other common causes.
Unlikely. Jaw pain, especially if it occurs more in the morning can be due to biting down or grinding your teeth. It can also be produced by dental work that alters your bite, though the intermittency of your symptoms suggest things like teeth grinding or biting down from stress. Your heart does not share nerve supply for sensation of your jaw so heart attack unlikely. Also, it is very rare in a young woman.
Need further testing. Jaw discomfort can be an atypical presentation of coronary heart disease, but further testing should be done before concluding that. A stress test, perhaps with echo or nuclear imaging, should be considered. Would be best to run this by your primary care physician.

Related Questions

Is it possible for a person having a heart attack to have neck and jaw pain but no chest pain?

Anginal equivalent. Yes, it is absolutely possible for heart attack victims to have neck or jaw pain as their presenting symptoms. In fact, patients who a diabetic run a risk of having no symptoms at all. While chest pressure or pain is the most common symptom, anginal equivalent such as neck pain, extreme fatigue, nausea, vomiting, or shortness of breath may be symptoms as well. Read more...

Is it possible for a person having a heart attack to have neck and jaw pain but no chest pain? I also have tmj

Yes. Neck and jaw pain without chest pain would be considered an "atypical" presentation but it does happen. Remember that a heart attack can (and does in 30-50% of cases) have no pain. Other symptoms that commonly accompany heart attacks are: breathlessness, cold-clammy sweat, nausea and sometimes vomiting. Recurring pain is not likely your heart since frequent recurrent heart attacks are unlikely. Read more...
Yes. Its possible. Must call 911 and visit chest pain unit inmediately as acute myocardial infarctions still have 50% mortality. Inmediate rescue coronary revasculatization is essential to stop the acute coronary syndrome. Must see cardiologist. Do not try to play cardiologist. This is a true potentially lifetreathening emergency. Read more...