Recently, during night time, I find myself feeling a burning sensation as if I'm feeling hot. This feeling is mostly in my back. Mostly during the time I'm just about to go to bed, or if I wake up in the middle of the night. Sometimes I will sweat a little but other times I won't sweat at all. I am certain that my body temperature is not high nor am I running a fever as when I touch my own back with my hand or any other part of my body, my skin actually feels cool.

Does this condition mean anything? It seems to be just a bit of an annoyance right now, but I hope it doesn't turn into something big.

Maybe it would be good to mention that I had heart problems, tetraology of follot and my pulmonary valve has been replaced once.