This happens to me when I eat something with a little fat- a good hamburger maybe or a small pat of butter on every single pancake. It can last a month. I would live in fear of being out in a public bathroom where there are stalls (no sink), Yes, mini pads!!
I’ve recently begun using digestive enzymes with most meals, but especially with anything fatty. They seem to be working great for several minths now. No prescription is needed as they can be purchased otc. . More naturally made can be ordered ourselves.
Another possibility is too much magnesium.
This can be very difficult to deal with for an ongoing basis.
All the best!!