Hello, I've Had Dark Grey Stool For Two Days. A

Hello, I've had dark grey stool for two days. A couple of days ago, I ate a Chile pepper and I had horrible stomach pain and diarrhea. I took a 40mg of omaprazol and an 800mg of ibuprofen. I've been gassy and a little bloated no more stomach pain, but still have dark grey stool. I need to mention, I recently had blood panel work and all is good, just a mild vase of fatty liver. Also, this last week, I was traveling and had a lot of fast food, more than usual. Thank you