Hi, I am 19 years old experiencing what I thought was heartburn 2 days ago.

Not exactly sure how it started, but 2 days ago after eating an apple as usual, I remember feeling the burning/stinging sensation when moving around/sitting weird position. I thought it was just some random pain, then I made a microwave meal for dinner, and it was returning, I was home alone and started worrying about my heart/lungs possibly having a problem. 

My pain has been in the same spot for 2 days, BUT it doesn't occur for 80% of the time.

When it does occur, it's always the same feeling in the same spot, the size of my fingertip. It is located on the left side On my Xiphoid. (at first I kept explaining to my mom, "sternum" - it is actually my xiphoid I think, right where the rib starts adjacent to my left nipple)

If I touch my xiphoid when there is no pain/stabbing/sensation, move finger 1cm towards heart, its there and feels Not numb, but weird on the surface, Like its sore (like 10% of the feeling when it occurs) Enough to remind me exactly where it is...

Yesterday (day 2 of this on/off) it was starting to get my attention, so I took 2 750mg Tums thinking it was heartburn, but the pain would still randomly occur after taking them.

I was stressed out thru the night, went to bed at about 2AM, woke up feeling like it might be okay, but when the covers pass over the surface of my chest, I felt this weird cold/numb feeling where it has been bothering me. (best i can describe it)

Now It's 3 in the afternoon of day 3, and the sensations of burning/stinging are still randomly* popping up.

*I can walk around the house most of the time feeling normal, however, i.e., when lifting a pile of clothes, or when I evengot a bagel out of wrapper, the pain comes back for only about 2 or 3 seconds. Even when I snap my left fingers, it makes the pain appear with about 40% of what is feels like when it's fully there

 

It seems like when I am going to do something like open the door for my dog, as I reach my arm out and pull open the door, it comes back then too.

Basically, for a few seconds I have a fleeting, transient burning/stinging sensation of the Xiphoid that comes and goes with light exertion.

Although as a baby I had a heart murmur, I am 90% sure its not a heart problem because of the one symptom of localized burning/stinging/stabbing.

However, the part that makes me wonder is, how I can feel fine the entire timetyping this, but if I get up to do something that "exerts myself"-

(opening adoor for my dog?/lifting pile of clothes/and I just figured out snapping my left hand will cause it, but not my right hand.)

- this is what makes me wonder what it could be..I currently do not have med. insurance, and its the weekend, so I can't go to the walk in clinic yet. I expect them to tell me it's anxiety... But I am posting here, because I cannot find a similar case to mine (everyone else seemsto have radiating pain; my "pain" is always the same spot.)