Anxiety about pooping (TMI)

Does anyone else get anxiety about pooping in public bathrooms, like a store, workplace, a friends house. I’ve battled with a leaky gut for years resulting in diarrhea, heartburn, and stomach cramping, and finally taking action to treat it with proper nutrition. It’s just taking a while for things to heal and regulate. I’m just so sick of getting the runs. I want a smooth move. In and out under 10 mins. Any tips on healing my gut? Getting over this anxiety? I know the worry only makes it worse by making you go even more.

Added: it’s not even about going, I still go if I gotta go but I’m embarrassed by the noises and smells. Especially the noises.