Both my dogs, corgi and springer spaniel, have developed loose stools. That can be a very messy problem on a tailless corgi. At the same time, both have taken to eating the new spring grass. I've started adding pumpkin, with mixed results.
I wonder, is the grass causing the problem? In that case, is this just going to be a seasonal thing? There's no chemicals on the grass, and it usually browns out by late July here.