Symptoms. Angina symptoms usually originate in the chest region of the body, on either side or both sides. The sensations that angina will cause an individual to feel in the chest are tightening, pressure, burning, squeezing, heaviness, or aching. Typically it will begin under the breastbone where the heart is located and radiate its way to either the arms, throat, neck, back, jaw, teeth, or the shoulders. Additional symptoms that are associated with the occurrence of angina are shortness of breath, nausea, weakness, indigestion, cramping, sweating, and heartburn. Stable angina is easily mistaken for indigestion or gassiness, and vise versa. Unstable and Variant angina both usually happen when an individual is at rest and are both more intense. Unstable angina will last longer and come on much quicker then both stable and variant angina.