Make sure you keep that snake seperate. Not trying to scare you but it looks like she may have some internal parasites. Did it look waxy when it was piled up? I got some wild caught snakes from florida one time that passed these same looking stools and i lossed a few before i found out what it was. They all had to be treated with metronidazole (flagyl) because they had an amoeba and panacur does not kill amoebas. Not sure this is what is wrong with your snake but i wanted to warn you because it is a possibility and they are highly contagious. It just don't look like a regurge to me. How long have you had the snake? Is it wild caught?