It is very possible to have parasites in your gut; the only way to know for sure is to get a fecal or stool sample and have in analyzed by a lab.
Ways to heal from parasites include:
•Avoid simple carbohydrates, such as those found in refined foods, fruits, juices, dairy products, and all sugars, except honey.
•Eat more raw garlic, pumpkin seeds, pomegranates, beets, and carrots, all of which have been used traditionally to kill parasites. In one study, researchers found that a mixture of honey and papaya seeds cleared stools of parasites in 23 out of 30 subjects. Drink a lot of water to help flush out your system.
•Eat more fiber, which may help get rid of worms.
•Probiotics (Lactobacillus acidophilus, Lactobacilus plantarum, Saccharomyces boulardii, and bifidobacteria, one to two times per day between meals) help keep your digestive tract healthy.
•Digestive enzymes will help restore your intestinal tract to its normal state, which makes it inhospitable to parasites. Papain is an enzyme from the papaya plant that may help kill worms when taken 30 minutes before or after meals.
•Vitamin C (250 – 500 mg two times a day) or, if well-tolerated, much higher doses of up to 6,000 mg per day in otherwise healthy adults — supports the immune system. Lower vitamin C dose if diarrhea develops.
•Zinc (20 – 30 mg per day) — also helps support the immune system.
Somehow most of these alternative methods for treatment coincide exactly with can treat candida. Vitamin C, zinc, fiber, garlic, and avoiding sugar are all helpful for fighting candida.