I have pain in my stomach and upper abdomen area and pounding heart beat

Many times an anxiety attack can cause pains in parts of your body and a pounding heart beat.  It can come upon you when you least expect it.  There are many people that have these attacks.  Is this the first time it has happened to you or have you had many other episodes of it?  How long do they last?  Did it go away with any intervention on your part or did it go away on its own?  If these become frequent, you can get treated for it.  Your doctor can prescribe ways of managing them including medication and activities to help you relax and become calm.