back pain with fever, chills, rheumatoid arthritis, ankylosing spondylitis, acute vertebral fractures,

history of tumor in the back;

back surgery within the past 6 months;

Chronic neurologic conditions, e.g., Parkinson's

involvement in litigation regarding back pain;

other severe medical diseases;

pregnancy;

positive urinary screen for any recreational drugs,

opioids use;

use of anticoagulants (low dose ASA allowed);

history of gastric ulcer; renal insufficiency or congestive heart failure,

contraindication to MRI,

contraindication to TMS; including history of seizure/epilepsy\*

Any medical condition that in the investigator's judgment may prevent the individual from completing the study or put the individual at undue risk;

In the judgment of the investigator, unable or unwilling to follow protocol and instructions;

Diagnosis of major depression;

Intra-axial implants (e.g. spinal cord stimulators or pumps)

Hippocampal Stimulation in Chronic Low Back Pain