I would have the white area swabed for microscopic exam.
This can be yeast infection.
Not really sure what your question is, since you have not asked one.
I would also make sure that they checked for chlamydia, gonorrhea, and trichamonus, often the last one is over looked.
I do not believe the flatulence would be related.
Bowel problems and digestive problems would need to be ruled out.
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