Yes I have been having excruciating pain for a year and a half in my thoracic upper region that goes across my whole back and comes around to the middle front part of my breast it only happens when I wake up in morning and I have involuntary muscle tightness to were I can t. Move or breath it will paralyzes me what can it be
Hitheres a need for checking by a physician, who may advise chest and thoracic spine x-ray for lungs and spinal issues. In addition, an EKG, blood tests also. There maybe a need to try muscle relaxant tabs like chloraxazone. So consult a physician and Orthopedic surgeons best wishes