9. Lightheadedness and dizziness could mean a sudden a drop of blood pressure.

It's normal to feel lightheaded when you haven't had enough to eat or drink, but when paired with chest discomfort and shortness of breath, then you may have a problem.

When you feel lightheaded, or unsteady, it could mean that your blood pressure dropped because your heart isn't pumping your blood properly.

In some patients, lightheadedness might be the only symptom of your heart attack. So, in that case, the best thing to do is to call your doctor immediately once you are experiencing these issues. Every second counts.