All blood test negative, but still feeling faint, dizzy, nauseated, with or with out vomiting,. Lots of headacks, kinda loose of food taist. Bloated all the time, have IBS. Lots of bright red and sometimes black blood in tolit water after bowel, sometimes blood clots. sometimes little pebbles, some times normal, but always blood. What do I do now. I have a Dr appt Wednesday for a proktoligest. Again.