Hi welcome to Health care magic forum.
Thanks for choosing H.C.M.Forum.
You are a female of 30 years , mother of 3 kids. since 1 year you are getting pain in the left lower abdomen, some times coming to right theigh, and back. your gynacologist get U.S.scaning and Cat scan after finding nothing she refered you to gastroenterologist.As it is like the period pain
yoou are thinking it may be related to gynic problem.
You should realise that it is mimicing period pain, but it is in abscense of the period.
Other possibilities, are urinary tract infection
, small stones in the urinary tract
, or bladder, tuberculosis
of the ilio caecal junction etc.
I advise you to consult a surgeon for diagnosis and treatment. You may need to have a culture and sensitivity of urine besides other routine tests for confirmation.
Wishing for a quick and complete recovery.