This Afternoon, After My Shower, I Suddenly Became Nauseaus, Felt

This afternoon, after my shower, I suddenly became nauseaus, felt like I needed to poop and/or throw up, and had difficulty focusing and then became extremely fatigued. I took my bp and it was 127 over 96. I climbed into bed, kept getting the chills and fell asleep for a couple hours. While I slept I had dreams that were incredibly real, so much so that I am questioning myself bc they felt like dejavu and if I ever had that dresser or where was I living that had the closet like that.
I also have a rash around my neck and legs