And yes it sounds like you have intestinal worms, something that is not uncommon in our part of the world, mainly because of poor sanitation. To identify the exact kind of worm that is infesting your intestines, stool studies (stool for ova and parasites and tape test on 3 consecutive days) are recommended. The treatment, based upon the most common/prevalent types of intestinal worms in our area (which are Enterobius vermicularis and        Entamoeba histolytica) is usually oral mebendazole. The definitive choice of therapy will be determined according to the results of the stool tests.