Thanks everyone. You all described it perfect.

Yes, I often get the feeling like a rib is floating and digging in when I bend over.

Yes. If I move a certain way, I get an immediate & intense muscle spasm that always affects the right side of my front rib cage. It is very painful & forces the air out of my lung on the right side. There is no cracking or sound. It's like a boa constrictor is squeezing me.

Yes. The way my RA doctor explained it to me is our tendons and ligaments are tightening up therefore it is causing us pain.
I have found stretching really helps a lot. Go to Pinterest and google stretches for chest, sides and back. I start my day with stretching. Even before I get out of bed.
Now it’s going to be uncomfortable when you start but it will be worth it

I have the exact same thing. Lots of cracking and clicking, even with small movements and deep breaths. My ribs are my number one problem area. I hope you get to feeling better very soon! God bless.