Inclusion Criteria:  Previously established clinical diagnosis of IC/PS Current numeric rating scale (NRS) score of ≥ 6 History of cystoscopy with hydrodistension with bladder capacity determination under anesthesia No cognitive deficits  Exclusion Criteria:  History of bladder, ovarian, vaginal cancer History of urethral diverticulum History of radiation cystitis History of spinal cord injury or spina bifida History of Parkinson's disease, multiple sclerosis, or stroke Current placement of a pacemaker or metal prosthesis Active urinary tract infection BMI > 40 Residual urine of > 100cc Current pregnant