Hi rufus444. The Mayo Clinic Proceedings Feb 2019 posted on A.C.N.E.S. It's amazing that physicians in the U.S. don't get this, because (as you have already found out) the condition has resulted in an enormous waste of medical resources and caused much suffering to many patients, including many others posting on this site in the past. One obvious problem is that gastroenterology is the wrong speciality, hence we're all left in limbo when gastroenterologists give up on us.

Here are some case histories and reports to consider. The Mayo report is last because when I asked Mayo's Dr. Sweetser for help, I was sent me a form letter of denial. (Dr. Boelens' report is the most comprehensive)
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Protracted diagnosis of ACNES: a costly exercise. S.J. Dancer, S.G. Macpherson, A.C. de Beaux. Journal of Surgical Case Reports, 2018;9, 1-3

Chronic abdominal wall pain--A diagnostic challenge for the surgeon. Rolv-Ole Lindsetmo, M.D., M.P.H., Jonah Stulberg, M.P.H. The American Journal of Surgery, (2009) 198, 129-134

A Double-Blind, Randomized, Controlled Trial on Surgery for Chronic Abdominal Pain Due to Anterior Cutaneous Nerve Entrapment Syndrome. Oliver B. Boelens, MD, Tijmen van Assen, MD, Saskia Houterman, Marc R. Scheltinga, MD, Rudi M. Roumen, MD. Annals of Surgery Vol 257, Number 5, May 2013 845-849

Difficult differentiation of a somatic symptom disorder from anterior cutaneous nerve entrapment syndrome (ACNES): A case report. Narifumi Yokoyama, Ryousuke Shiraki, Takashi Watanabe, Makiko Shiinoki, Michihiro Nin, Taro Shimizu, Norio Yasui-Furukori and Kazutaka Shimoda. PMC Psychiatry (2019)19:394

Abdominal Cutaneous Nerve Entrapment Syndrome. Sheila Clark FCAI, Saravanakumar Kanakarajan MD FCPS FRCA FFPMRCA. Continuing Education in Anaesthesia: Critical Care & Pain, Volume 15 Number 2 2015, 60-63.

Abdominal Wall Pain: A Common Clinical Problem. Seth Sweetser, MD. Mayo Clinic Proc, February 2019:94(2):347-355. https://doi.org/10.1016/jmayocp.2018.04.03
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I check in here occasionally to see if Mayo has helped anyone yet. Sorry I (and many of us) are still suffering.