hiyah!,
welcome here.
Perhaps you are feeling the diiferent atmoshperic pressure of Mars?
Perhaps the chill is the real you, (not your body).. feeling the different temperature variations from Earth, to Mars.. ( It is quite chilly there i hear) lol
I dont know, honestly, Just tossing out ideas...
But so far it sounds as if you might be on the right track..
keep it up.
also.. as long as you
know , that no entities or energies can harm you, you will have no worries.
Blessings and Pleasant Journeys.