Uncategorized5 Types of Blood Clots Doctors Wish Every Patient Knew by newupdated on May 25, 2017May 25, 2017 2. Blood clot in the heart The heart is a less common location for a blood clot, but it can still happen. A blood clot in the heart could cause your chest to hurt or feel heavy. Lightheadedness and shortness of breath are other potential symptoms