Hey all,   As we speak, I sit on the couch at 3 in the morning after (or during, hopefully not anymore) one of these 'attacks.'  Naturally, my inclinsation was to turn on ESPN and google for a bit to calm myself down.  I hope this finds somebody in my same position, because I have experienced the same thing all of you have been experiencing, and it scared me beyond believe.  I will say, i'm not a doctor, can't pretend to know what i'm talking about, so this is not by any means the definitive advice, but this has been my experience.    It was eerie reading all of your responses, as the night it happened to me I remember more vividly than almost any experience I've ever had in my life.  That pain, that sharp, brief stabbing pain right below my left pec (when it happens, my fingers naturally grasp the bottom of my left pic close to the middle) was something I had never felt before.  Ever.   I got up, peed, walked around for a minute, and went back to bed.  Within minutes, i had it again.  I also started to get a little tingly in the face... this is where it is possibly un-related to the actual pain, because my doctor told me that either A: the vagus nerve 'going off' or B: a panic attack, which i had never had before, but the symptoms were indicative of either.  I got up again, got immedietely light headed and fell to my knees, and stumbled up the stairs to the kitchen.  I started sweating like crazy... have never sweat that much unprovoked.  Obviously at this point, having no idea what was going on (and a pain in my heart to add to that), it was time to call 911.   I will add that these pains scared me more than anything in my life.  They were sudden and sharp, and it's almost as if i could draw it out with a deep breath or a yawn... many times i was caught mid-yawn with one of those.  I severed my radial artery last summer (glass window accident) and as we waited for the ambulance, I was making jokes, talking, laughing, all in a pool of my own blood (weird, i know).  This experience was, hands down, 10x as frightening.  I was sitting in a chair with my cell phone in hand reflecting on my own life.  An overraction?  A bit... but I had no idea.   So, I'll cut to the chase: same as all of you.  EKG: normal.  Blood tests: normal.  Wore a heart monitor holster for a day after: results normal.  Doctors at hospital had no answers.  That was the most frustrating thing for me... I had to go home not knowing what the hell had just happened to me because I couldn't replicate it at the hospital.     Visited a cardiologist the following week, who did another EKG and listened to my story.  To my very, very, very much appreciated relief, he believed he had an answer for me.  He mentioned the Vagus nerve or panic attack for the other symptoms, but he seemed confident he had the answer for the sharp heart pain.   His answer: acid reflux, accompanied by the possible spasming of the esophagus.  He prescribed me an acid reflux medication, and i had not happened again for many consecutive nights as i took the medication.   I am sitting here right now because i am a stubborn 24 year old who refuses to believe my body can't overcome this problem and fix itself, and haven't taken the medication in well over a week.  And boom, here I am.  As my doctor said before I left: "Congratulations.  You're getting older."   Like i said, this is not meant to be at all any sort of diagnosis for any of you.  I just know how scared I was when this happened, and wanted someone to tell me it would be OK.  If you've had these symtoms reoccuring and didn't have a visit with a sort of specialist regarding your symptoms, go see a specialist and describe what you're feeling.  Doctors at a hospital can only tell you so much.  They can, however, tell you that everything looks normal, which is something to hang your hat on within itself.   My best advice, at least in my experience: stay calm.  I think i generated my own drama because I stressed myself out so much in the moment.  But like i said, go see a special about your problem.  I know how weird it is, and especially it is something concerning your heart, it makes things that much more pressing.  If i woke up from a sudden sharp pain in my hamstring or something, I'd be hard pressed to even budge out of bed.  When it's your life-source, things are a bit different.    Anyways, I hope this helps at least one of you.  See a specialist: they can tell you a lot more than i can, and this isn't meant to be a diagnosis.  I just know that it's comforting when you find other people who have gone through what you're going through, and I think this was a good opportunity to do just that.  If you're having something like this and you suspect something is seriously wrong, don't hesitate to call 911; one emergency visit is well worth the exchange for peace of mind.  If this is reoccuring and you haven't followed up with anything following your initial hospital visit, like i said, see a doctor with more knowledge of the area you're having these experiences.     I apologize for the long winded message.  I just like to imagine myself getting on and reading it and making a decision to see a doctor about the problem, simply because of my own experience.  And it's a nice excuse to burn a little time now at 3:30 a.m to hope this medication kicks in before i hit the hay again.    -M