heart centre

[geonnn22]

My heart centre began a burning sensation about two months ago. Sometimes its almost unbearable. Reccently the heat  seems to spread out up and down the left side of my body with no effect on the right side. It stays like this for hours at a time then the heat seems to focus on the heart again. Can anybody help me understanding this? And if anybodies had this , how long does it go on for?