I also felt minor aches in my neck and back(spinal twists) before I started stretching daily to strengthen my joints and improve my ROM and by default my cracking.
but
I have also lost ROM in my neck from 'sleeping the wrong way'
and
had back pain from sitting in the car for long periods of time
All Normal
The graph above shows a "sprain" zone
there are 3 types of sprains(some say 4) mild moderate and severe
the latter involving swelling even severe swelling and immobilization, w a tear or partial tear of the ligament
ligaments are REALLY STRONG
it usually takes an accident or force of momentum to truly "sprain" a ligament
I don't believe joint cracking could do that.
Any movement pushed past it's ROM could cause a 'mild sprain"
like An ache in the neck from cracking your neck 2 fast or 2 hard using the force of momentum,
But I don't believe you could tear a ligament and Actually sprain your neck, w severe swelling and immobilization, by cracking.
yes i love talking about joint cracking:roll:
Don't you 😉