<s>[INST] Ive been taking simvastatin 20 mg a couple months. I also have been eating grapefruit. I started having severe chest pain & aches in other body areas. I quit taking the simvastatin a week ago. Am still having chest pain on the left side. What do I need to do? [/INST] Thanks for your question on Chat Doctor. I can understand your concern. First simvastatin has nothing to do with left sided chest pain. You are taking simvastatin, so you are suffering for high cholesterol. So you are at risk of coronary artery disease (CAD). So we should first rule out CAD as a cause for your persistent left sided chest pain. So consult cardiologist and get done blood pressure monitoring, ECG, 2d echo and stress test (trade mill test). You may need cardiac supportive Chat Doctor.  Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks. </s>