i am 26 year.sometimes i have found some white foam in my stool , is it serious problem and what are its causes may be? if i drink water then i have frequent urination for 1-2 hours until all drinked water urinated and i feel little thirsty(for water) in between and when after 2 hours urination is normal but i am feeling thirsty(for water) and when water.. again problem is recycled...what will be the cause? is there is any need checkup or testing of urine or any other test is required ? my urine is colorless and generally without burning...i have thread worm in my stool for the last 8 years and can not be controled by medicines(Ayuvedic-vadingarisht,English-(Albendazole, mebendazole ,citrizene),Homoeopathic ) and causes indigestion.