I have finished my third Liver Flush a couple of days ago as well. I started 24/06, then had diarrhea 25/06 and some on 26/06. On 27/06 I had no bowel movement and then the two days after that I got dark, soft (loose) stool. Also, my stomach doesn't feel like a 100% yet.
I read on another forum a pregnant woman having black, loose stools and she had it tested and it seems like she had a small tear in her stomach that caused bleeding and thus the dark stools. Now I'm worried that the Epsom Salts might have caused a tear? I only hope it's just a detox reaction..