I've never heard of it. Vegans don't like to hear anything negative about soy, but soy is right up there with eggs and milk as a food that many people can have intolerances for.
Give up suspect foods for a week, and then re-introduce them one by one, and note any reactions. Hopefully you are reacting to the more highly processed stuff.
Once you figure out what is doing this, you may not have to give it up entirely. You can follow a rotation diet where you only eat it on certain days. It is worth finding a good book on food allergies and rotation diets if you think this is your problem.
Bookmarks