I also suspect the same...that is the ileocecal valve doesn't close properly. If that's the cause, it would be harder to cure comparing to getting rid of worms. So, I would first get rid of the worms. If odor still exists after dewormed, I'll look into that ileocecal valve issue.
I took 50mg Grape Seed Extract and Probiotics after dinner and laxative last nite. I don't smell this morning. It makes me odor free for a day.