Recently, I often have a pain in the middle of my chest and a headache when I lie down to rest. I had arrhythmia before, is it worse now? Are chest pain and headaches caused by arrhythmias?

I have chest pain, sometimes my heart feels like someone is suffocating. So the doctor asked me what is the symptom of chest pain? Thank you doctor.

Recently, I have been experiencing chest pain. 3 days ago when drinking water, there was a sudden pain about 15 minutes. There is pain in the following days but less time. The doctor advised me that chest pain is a symptom of what disease? Thank you.