Hi.
Thanks for your query.
Noted the history and understood your concerns.
You have got a classical history of gases followed by spasmodic pains and well formed stools but followed by
diarrhea can be due to intolerance to milk and milk products or for that sake anything that can cause this.
This can be identified by the following ways:
Keen observation and may be making a list of the foods and beverages that one takes and its effect on gastrointestinal tract can be helpful to know which ones are instigating or enhancing so that these can be stopped and see the results within 3 days.
Tests of stool.
Blood for CBC, thyroid and liver function.
Ultrasonography.
If there is infection a course of an antibiotic active against intestinal infection along with
metronidazole and probiotics may help a lot.
The investigations including
colonoscopy and CT scan can help further if the medical management fails to relieve you off the symptoms.
If all the investigations are normal then this may most probably be due to IBS that is
irritable bowel syndrome.