Numb left side and heart pain?

Im 21, when i was 19 i was at work and had my hands go numb then moved along to my face. Soon following that couldnt get words out and my sense of balance was thrown off. by the time i got to the hospital i was left with a horrible headache and went through an mri, ekg, and several blood tests but they couldnt tell what was wrong with me... since then i havent had any problems till now in the past three months at least once a month i get tingling and numbness in the left arm and face... and now my heart is begining to hurt when i breath deep... im healthy weight, exercise, regular heart beat... should i go to a specialty doctor or does anyone know what could commonly cause these symptoms?