Hello Hen - The other poster was correct in telling you that what you saw were parasites. Liver flukes live in the liver and the very much resemble tomato skins. Liver flukes start out their lives a white color - they are small. As they grow inside the liver, the blood stains them, pink, then red, then darker shades of red. Old adult liver flukes are almost black in color because they have been in the liver for so long.
The parasite killing herbs are doing their job and the Liver Flush just pushed the parasites out faster. The blobs were probably egg sacs and or larvae sacs. Sometimes it is frightening to see such strange things in the toilet! You are doing a fine job with your cleansing - and yes, better out than in!