Thats usually from osteoarthritis.
There are a few reasons you have cracking and popping noises from your joints.....it doesn't necessarily mean there’s something wrong
https://health.clevelandclinic.org/snap-crackle...
I’ve had it since I was 16. I’ve found it’s the prelude to arthritis.
Cracking and popping in joints isn't necessarily related to fibro. It is more associated with joint damage.
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