I don’t know about fibro, but i know it can be related to autism and adhd because of hypermobility. i probably have EDS and i’m AuDHD and my joints crack and pop constantly

Yep! All the time! I'm suspecting I have hyperbole EDS and that's why.

Not related to fibro. People with autism are commonly hypermobile so that may be why

I don’t have eds like some autistic people but I DO have hypermobility and creaky joints. In fact an orthopedic specialist told me I basically have in his professional language “loosey goosey joints disease, you’re just kinda wonky.” And you know what? That is exactly how I’d describe it too since there’s no reason other than autism for me to have joints like that. But they creak, pop, crunch, you know, average rice crispy cereal over here. Some of my joints are even fucked up in other ways, my hips have IT band snap syndrome where my it band snaps over mommy hip bone like a rubber band and occasionally gets punched in the joint. And my knee has maltracking so it doesn’t stay in place fully whenever I bend it and occasionally pinched my muscle or nerve or tendon when it would move in and out of place.

Check out hypermobility

Mu joints do that all the time! Cause of my fibromyalgia and osteoarthritis. I definitely feel you on this

I also have constant cracking joints. Thankfully it's a sensory thing I love so I welcome all the cracks but there's always a multitude of stuff I can pop at any given moment.

Yes and I have hypermobility

Heds and HSD are commonly related with autism

Diagnosed autistic and I’ve got Fibro too, and I’ve always had cracking/popping joints. My mum used to hate when she’d pick me up and my shoulder would crack, and it amused my friends when I’d repeatedly bend my knee for it to pop, or twist my ankle so we could hear it crunch. I’m so used to it by now I rarely notice it much unless it’s a particularly painful pop

Yessss! I have cracked almost every bone in my body. If I don't crack my back, neck, ankles, wrists, fingers, or knees they become super uncomfortable

Im cracking everywhere all the time. Sometimes my spine cracks when I breathe in deep enough.

My mommy milkers are so heavy that every 5 minutes I can straighten out and my entire spine will pop. My elbow will pop continuously from rotation. My right hip joint pops when I'm up and walking for too long, and sometimes it'll cause a whole cramp that encompasses the entire right side of my groin and it'll feel like the bones are grinding on each other every time I move.

I have a constant pop in my wrist, ankle and knee. Everything else pops sometimes but any time either of these ones move they click, crack and pop

I have chronic costochondritis (which you might be familiar with bc of ankylosing spondylitis and/or fibro, but maybe not) which is basically chronic chest wall inflammation and pain. Esp when I'm flaring, my chest does the snap-crackle-pop noises a lot and it's a lil uncomfy.