This is Dr Basu, experienced Internal Medicine Specialist.
I am here to address your concerns and provide great service.
These symptoms are not likely from the exercise related.
Food poisoning is most likely cause.
Contaminated food can carry bacteria into your intestine.
Parasitic infection also common.
E coli, salmonella, ameba, giardia are such examples.
Please get stool tests for confirmation.
You will likely need antibiotic course.
You can start a probiotic preparation to restore microbial balance in the intestine.
Youshould consider following low fermentable sugar diet ( FODMAP diet) to reduceyour symptoms.
Pleasego to this link for detailed information:
Please also include prebiotics like Inulin daily to keep your colon acidic which prevent gas producing bacteria.
Also take a probiotic ( lactobacilli, bifidobacterium) daily to restore intestinal microbial balance.
Culturelle 30 Counts twice daily should be fine.
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