Sorry for posting this pic. I was having a lot of flatulency since this evening, also i went poop thrice today. Third time when i went i saw this kind of black things in my stool, stool was loose. I am scared if this is blood or undigested food! I had spinach this afternoon, can this be that undigested ? Please help, i am scared a lot. And sorry again for posting this image :(. Apart from this, no stomach ache nothing. Mild nausea yesterday but today its not there, some tingling in anus inside too like piles, but i don't eat junk foods. Please help me!!