Sometimes very small white worms comes out of my anus.slight itching.when i was a child, it happened more frequently and i could see worms in my poop.

Pinworms : I am amazed you can tolerate this. Pinworms are usually a childhood disorder and cause itching and sleeplessness. There are antibiotics which work well. You will need two treatments a week apart and your family would be well to be treated too. Washing all the clothes and bedding too is essential. Go see the doctor and get help!