<s>[INST] I have a history of kidney stones. I usually have some side abdomen discomfort and sometimes grown pain that throbs. Figure it s probably passing stones. I am also sometimes very itchy in my rectum. Sometimes I ve noticed some red blood spots on tissue. A while ago I had a itchy sensation throughout my body that last ed days. Today I saw a small worm with black tips in my toilet bowl while urinating. Don t know if it was already there or if I urinated iit.please help [/INST] HI, thanks for using Chat Doctor If there is a history of kidney stones, it is possible that, if still present, they are contributing to your abdominal pain. Itchiness of the anorectal area can be related to the presence of a rash. Some persons also have this itching if they have worms and need treatment. The presence of the blood may be related to the irritation of this areas by the rash or worms (if present) but it is always best to have rectal blood investigated so that serious causes can be ruled out. In addition, if you are unsure about the worm on urination, you also should have your urine tested by your doctor. I hope this helps </s>