Several years ago I had an MRI that showed a bulge near a cervical disc. I had been complaining about crackling noises when bending my neck. The doc said "wait and see". Starting about three months ago I developed muscle pains in both arms, as if I'd been lifting weights. But I haven't. I looked in an anatomy book and it looks like the pain is centered around the radial nerves. Doing pushups doesn't hurt but gripping anything is painful. Also my grip strength is reduced. And although it's not painful, I've got itchy skin in both forearms, just above the wrists.
If I bend my elbows while working at the laptop, they eventually become stiff and it's difficult to straighten them. I don't feel crepitus in the elbows but have had it in both shoulders for years due to rotator injuries.
The crackling noises are still there plus a sharp neck pain if I bend my head a particular way. I run an average of 50 miles per week but don't to any weight work. Lately I'm afraid to pick up a barbell, thinking I won't be able to grip it.