Thanks for all these additional information.
I understand your concern.
Well as you describe,possible causes may include Gastritis,Intestinal spasms,Intestinal bacterial overgrowth,Diverticulosis,Renal colic.
You should take OTC Zantac and Motrin.
Also do warm compresses with a heating pad on affected area.
You should hydrate yourself with plenty of fluids.
Also take OTC Mylanta gas and metamucil.
Start a probiotic.
And eat a bland diet.
If your symptoms'll persist then see your doctor for further evaluation and management.
Let me know if you have any further query so we can discuss it thoroughly in every aspect.
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