Hi,  my girlfriend has an-indent on her spine on her upper back. And surrounding muscles. Became long lasting 24hrs ago. Note, often has to pop her back into place besides this. No movement issues, dent in from time to time and then out again. Makes crackling sound
Hello! Welcome on Chat Doctor ! Her symptoms could be related to a muscle spasm. But I recommend performing a spinal column X-ray study to exclude a possible vertebral column disorder. A spinal cord CT scan may be needed. Hope you will find this answer helpful! Best wishes,