TENS in Scleroderma

Inclusion Criteria: 1. Classification of Systemic Sclerosis according to the 2013 American College of Rheumatology and European League against Rheumatism classification criteria. 2. Age \>= 18 years 3. English speaking. 4. Participants who report moderate to severe symptoms of distension/bloating on UCLA Scleroderma Clinical Trials Consortium Gastrointestinal Tract Instrument 2.0 5. Stable GI specific therapy including prokinetics over the last 4 weeks. Exclusion Criteria: 1. Pregnancy, or currently lactating. 2. A history of major abdominal surgery (other than cholecystectomy, appendectomy, or deemed as non-major by the investigators) 3. Unrelated active disorder which may involve abdominal pain, such as inflammatory bowel disease, diabetes or unstable thyroid disease. 4. Known allergy to adhesive ECG electrodes. 5. Known contraindications to TEA (e.g., cardiac pacemaker, epilepsy)