Thanks. I Am A 62 Y.o. Woman, And Although I

Thanks. I am a 62 y.o. woman, and although I do not feel the least bit sick or uncomfortable, I am flushed and feel very hot.... not necessarily hot like a fever, but hot internally.... What on earth is that about? I have great VS, BP 120/ 64 at the last check-up 2 months ago, I am not on any medications; I do not have diabetes, or any thyroid disease other than a benign nodule that has been checked out by Mayo.