My name is Tammy and I have Rheumatoid Arthritis. I am use to my normal joint pain but I have been having fevers, chills, wide spread pain in the back of my shoulders and arms and legs. Normally in the mornings to mid afternoon I do okay but as it get s later in the day I get very sick, tired, weak, I hurt really bad start having fever and all I can do is lay down until it passes. Normally by the next morning, I am able to get up and go to work. then the next day I do it all over again. Any ideas of what my be causing this?