what if there is blood in runny stools?

I had some blood before the detox program, especially after red meat. Now in day 5 I’m getting light red blood with runny stools. Sometimes runny sometimes not. Is this cause to see a Gastroenterologist after this. I do have a yeast infestation – rated at serious but not severe. Is that the problem? I think I saw a worm or two come out in day one and two. I actually slept after that – for the first time in a long time. Also, is a bit of barley malt extract okay? Fine stuff, with a bit of iron to help me feel less run down or satisfy my cravings for sweets. Other than that, I’m feeling better and have a lot less bloating than before. Yay! I did this detox last year but didn’t follow up with the probiotics. I’ve got heaps of them ready for the follow up this time. Maybe the fact I had my appendix removed doubled the problem there. So, about the blood. Any clues? Thank you.