Hi, I m worried I have something seriously wrong, I have itching in my anus and bad gas. For over 1 and a half years I ve had pain in my right side that comes and goes, have had internal exam and blood tests, Ct on kidneys and they ve found nothing. But recently got this itching, I do sometimes have blood on the tissue when I ve passed stool. And the last week I ve been feeling nausea and like I might faint.