Make sure that your water intake is at least 2 quarts per day or more. Also try more fruits and fruit juices - this should help. Some people get constipated if they are not hydrated enough - especially when parasites and toxins are being removed. The overload of parasites and toxins causes the pipes to backup. Other people have just the opposite problem - loose stools.
If the water and fruit does not help, you can always take a dose of epsom salts to jump start the bowels into action. Of course, an enema will provide instant relief.
Different peoples bodies all respond differently to parasite cleansing. Some people see parasites from day 1 - others may not see anything visible until day 20. Some people have frequent loose stools while others tend to get constipated. Some have horrible die-off and others never even have a slight headache! It truly depends on the type of parasites being removed and the general health of the person cleansing.
You are still just on day 5 at this point - get your bowels working - then you might see something exciting. Keep in mind that only 30% of parasite species that infect humans are even visible to the naked eye. Even then, when they come out in the stool, they will look quite different than expected because the digestive enzymes will break them down.
Pinworms, tapeworms (most are only 1/2 inch long) and hookworms live in the intestines and are more readily seen when passed - the body does not have time to break them down before they come out in the stool. Ascaris larvae, other larvae and eggs take longer to work their way down and are generally more "digested" by the time they are passed.
Sometimes liver flukes are the last things to go. They are very tough - they have to be to actually live in the liver. The liver filters all of the "poisons" we come into contact with everyday. It also produces bile which are the digestive enzymes. They will come out, they just hang on for dear life.