<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Ive been feeling so dizzy, weak and having sharp chest pain lately. I dont know whats wrong with me.  <response>: After examining you, I suspect that you may have sinus bradycardia. This condition is characterized by a slow heart rate.Note: Please note that the conversation is very short and it is for illustrative purpose only. In real world scenario, the doctors may have to ask more questions to make a proper diagnosis. 