Possible Heart issue???

I am currently in Iraq working with the Dept of Defense. I have been here for 5 months now and in the last 3 weeks I have developed chest pain, pressure, and discomfort under my Left ribcage under my chest muscle. I can make myself belch and it clears the pain/pressure for a couple of seconds but it returns. Some days are better, other days are worst. If I twist my body and try to look behind me the pressure is stronger. I have had one day in the last 3 weeks that I went numb from my left cheek bone to my left fingers. I went to the base hospital and they did blood work, EKG, and chest xray and have found nothing. One week earlier they did the same blood work, EKG, and chest xray and found nothing. The numbness lasted for only 24 hours but the chest pain has lasted for 3 weeks now. I am currently taking 150 MG of Ranitidine/Zantac twice daily. My question is does this appear to be a heart condition or gastric? Unfortunatley, the doctors here specialize in battle injuries and I am wondering if I should fly out immediately to see a cardiologist or wait until July when I am on RR. My father died of a heart attack at 48 and  I am currently 38. When I do any cardio I do NOT feel any shortness of breath and any unusual heart beats. The machine shows me at 140-160 BPM. Please let me know what I should do.

[Encephalomalcia]

With the numbness, it sounds more like pinched nerves in your spine.  You may want to try a chiropractor to make sure that your spine is in alignment.  The back is the foundation for the body.  When the spine is out of alignment it can cause all sorts of symptoms including stomach problems.  With your dad having a heart attack, you want to be sure to know your cholesterol levels.  Keep your LDL 100 or below.  HDL 40 or above and triglycerides below 150.  Know how much inflammation is in your body by a blood test.  When there is inflammation in the heart, cholesterol can stick.  What was your father's symptoms before the heart attack?  A lot of people will say that they felt like they had the flu, they had flu like symptoms up to three weeks before the heart attack.  If you have siblings, pay close attention to their health.  Usually, people take more after their siblings than their parents.  Hope you start feeling better soon.