Passed a very yellow fluid after stool. 23, Male.

Background   info: Borderline obese, very sedentary lifestyle. Bad sleep cycle in   the last 12 days (staying up late at night due to work). Inconsistent   meals routine (Since I wake up late, I tend to combine breakfast and   lunch).

I had a pretty normal   stool, but towards the end of it, there was a mucus-like substance. I'm   aware that mucus can sometimes be excreted. But what happened during  the  subsequent bowel movement was that a very yellow, slimy-like   consistency liquid substance was excreted. What could this be? Could   this indicate any underlying conditions?