Occasional numb/tingly feeling in left arm with chest pain. ecg, chest x-ray, and blood test are all normal. better with medicine.can it be the heart?

Unlikely: You have been evaluated for heart disease and do not appear to have heart problem. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. Get HPV vaccine.