Atrial fibrillation is a common type of arrhythmia we encounter in our daily lives. So, what symptoms generally accompany atrial fibrillation? These symptoms are often characterized by sudden onset and cessation of palpitations, or chest tightness. During palpitations or chest tightness, dizziness often accompanies, and some patients may experience chest pain. If you exhibit these symptoms, don't panic. You can visit the cardiology outpatient department at a hospital. There, a doctor can perform an electrocardiogram or a Holter monitor test to see if you have atrial fibrillation. Blood tests can also be done to check if hyperthyroidism, a potential cause of atrial fibrillation, is present. Based on these examinations, follow the doctor's guidance and take medications as prescribed for treatment.