Only seen two pinworms / not passing any dead ones in stool

Last week I found one pinworm. The following day I took Mebanozole. Three days later I found another live wriggling worm in my stool. In total I have only seen two. I have eliminated Sugar and carbs from my diet, and eating two cloves of garlic per day and lots of pineapple and veg only. I am bloated a week on. No itching and wriggling has stopped, but wondering why I have not seen any dead or live pinworms in my stools? Does this mean that they are still in the intestine? Is it likely I only had a small infection only seeing two. I think I may have had this for a year or so however as I've had all of the symptoms except seeing any. What should I do? Also, what colour are dead ones? I can see plenty of bits that look like dead worms (brown) but more certain its pineapple fibres. Tweet