Chest Discomfort, Nausea, Lightheadness, racing heartbeat- is this what I think?

Hi. I am a 21 year old woman who does not smoke, drink or do anything of that sort. Of course I am overweight... but the only factor I`ve had is high cholesterol. Today, I received a shock that I thought was a heart attack. Around 2pm today I was playing a video game and had just beaten a level. Suddenly the pain came on and I didn`t know what to do. It was so sudden and I felt like I was going to die. I went to the hospital and they checked me out declaring that nothing was wrong. Right now I feel like I`m going to vomit and the pain is still there. I`m on an antidepressant. Does that mean it`s not working? Can anyone provide me with advice?

[CollegeGirl143]

those are also common symptoms of an anxiety attack. If you where checked out thoroughly and not found to be having a cardiac issue, try and trust that rather than become fixated on it. Sometimes anti-depressants take awhile to kick in, dont give up!

[Sweetwaterguy]

Your concerns are certainly worth another consultation with your family practice physician and perhaps your pharmacist.  If heart has been ruled out could the medication be a contributing factor?  Is depression a correct diagnosis, or might your symptoms be due instead to an anxiety disorder?  Hard questions, but perhaps they need to be asked.
Good luck!

[JanfromNY]

Do you have any other symptoms? Fever, dizziness, hiccups, weakness, fatigue.  You should see your primary care dr for an EKG.  He/she can listen to your heart to see if they hear any rubbing or if it sounds normal.  It could be anxiety, a pulled muscle from the video game, the wrong antidepressant dose or wrong antidepressant all together, or it could be nothing at all, just a viral infection.  Unfortunately, these days, ED is not the best place to have it all checked out, a primary care dr. or clinic is.  Good luck.