Middle back pain: Introduction. Middle back pain: Back pain in the middle back area. See detailed information below for a list of 31 causes of Middle back pain, Symptom Checker, Assessment Questionnaire, including diseases and drug side effect causes. Â» Review Causes of Middle back pain: Causes | Symptom Checker Â» | Assessment Questionnaire Â».
A cardiologist explains possible causes of left side chest pain when exhaling. For this article I consulted with Dr. Donna P. Denier, MD, F.A.C.C., Faculty Clinical Cardiologist at South Nassau Communities Hospital, Oceanside, NY.
Gas trapped in the bend of the colon lying near the spleen (splenic flexure) can cause pain in the left upper abdomen or in the left lower chest. Other symptoms and signs of the so called splenic flexure syndrome include: 1  Distension of the upper abdomen, which can be tender to touch or not.