you have a systemic parasitic infection. it's spread throughout your body. i have this too. you may have 3-7 different kinds of parasites/worms. i would probably cut out all sugars and carbs at this time. even fruits except sour fruits.
if they are crawling out of anus, you have pinworms. I'd try use a garlic clove, and a lot of enemas
All these foods help kill the parasites:
Pomegranate and cranberry juice
Aloe vera, fresh leaf blended in water
pumpkin seeds 1/2 c- 1 c a day
onion soup, with coconut oil
large salads with flax or olive oil
steamed or raw vegetables
freshly prepared juices: celery, cucumber, carrot, green apple, cranberry, greens, etc.
chia seed mixed with water