HI, and welcome! Yes, you can have both fibro and lupus. But, we do have all the achy muscles and it feels like our joints hurt, too. But, it's actually the muscles, tendons, and ligaments that help move the body that are hurting. It does feel like arthritis but it isn't.
Be sure to check out the Fibro 101 thread...the first thread on the forum. There are links to good info about fibro...including a list of symptoms. See if that helps you some.
Let us know what you think and don't hesitate to ask more questions because we are here to help you. Many of us diagnosed ourselves before our doctors figured it out!
I'm so glad you popped over here and joined in. I hope to hear more from you soon.
Sherrine