But you're lucky, relatively speaking. If you were shot in the heart, your blood pressure would quickly drop, but it would take 10 to 15 seconds to lose brain function. In that time you could draw your gun, utter last words, or spend some time thinking about your unfortunate situation.
Caffeine can cause indigestion, which in turn may lead to heart palpitations. However, arrhythmia (abnormal heart rhythm) can also cause palpitations, and this condition is more of a concern. Seek medical attention if your palpitations last longer than two or three minutes.
Some heart rhythm disorders can cause a fluttering in the chest, shortness of breath, chest pain or dizziness. Hyperthyroidism Hyperparathyroidism can cause fatigue and weakness, increased thirst, impaired thinking, and bone fractures. Atrial flutter. Atrial flutter is an abnormality of the heart's rhythm that causes rapid and sometimes irregular heartbeats. Aortic stenosis. Aortic stenosis is a condition of the heart causing shortness of breath, dizziness, or chest pain.