Hi , I Occassionally Have Loose Stool That Has Lots

Hi , I occassionally have loose stool that has lots of tiny air bubbles releasing from it, almost like alka seltzer. I can't seem to find any rhyme or reason for it, ill have very normal stools once a day for a week or so at a time but then just have sudden stomach upset and have a diarrhea full of these tiny air bubbles. I've had issues with intestinal candida in the past and wonder if it has anything to do with a gut bacteria imbalance. Thanks for your help.