Dark circles under eyes are an old-timey sign of parasite infections. Even to this day. Children who have parasite infections also have dark circles under the eyes. The skin around the eyes is the thinnest - this is why it can look the worst on folks who are ill.
Prune juice is the best for bowel movements. Wait until after your cleanse to take any probiotics - HUMAWORM can;t tell the difference between good and bad bacteria so it will just remove them too. Hopefully the HUMAWORM cleanse will get your liver functioning properly so any extra digestive enzymes won't be needed.