Hi, Ms.Wright, and welcome! I'm so glad you found us and joined the family. Yes, the cracking happens to quite a few here. My fingers will "stick" and then pop, also, when opening my hand from a closed position.We used to have the Rice Krispies Club...snap, crackle, and pop! Check out the thread called Constant Neck Cracking. It's along the same lines as what you are experiencing.
Be sure to check out Fibro 101...the first thread on the forum. There are links to good information about fibro and you will learn a lot there.
I'm looking forward to getting to know you better. Don't hesitate to ask questions because we are here to help you . Hope to hear more from you soon.
Sherrine