The past three days I've been having severe cold chills to where I cannot even move. Then it switches to I'm so hot I want nothing on me. My legs are cramping a bit. But nothing else. No respiratory anything, stomach is fine. No fever at all. I'm just completely exhausted. Been sleeping for days. Not flu or covid. I'm not due for my period for another 9 days. Has anyone had this happen during a time in their cycle? Could it be an early sign? I'm not fishing, just making me nervous lol. Thanks guys.