Sounds like you possibly are going into a flare. My body used to do like yours. After 2003 I never got rid of my raised temp, mouth and nasal sores. Rashes, fatigue and joint pain. I'd agree with Lynn take some time for yourself and see if you begin to feel better than you did.
I hope that if this is a flare that it's a quick one and gone before you know it. I wish you well and please let me know how you are doing. If you're not feeling better by Monday I'd give your doctor a call.
dx fibro, SLE, glaucoma, cateracts, bells palsy, depression, migraine headaches, gastreopaersis, chronic anemia, RA,MDS (Blood Cancer). Tons of meds.