dtvonly

This happened two nights ago. I was in the room watching TV but all of the sudden I felt cold from "the inside out" from which I started to shiver. I am physically fine. I do not have a cold or any physical illnesses. I was not watching a horror movie. In fact, I was watching a hallmark (light) romantic movie. I do understand the "chills" from a very cold day but what is going on with feeling it from "the inside out"? Please explain. Thank you.

why is there salt in sweat? there is also a small amount of sugar and urea. So why is salt so "dominant" in our sweat to the point that we can taste is? Why not sweet sweat? please explain the physiological significance of (more) salt in our sweat. Thank you.