Hello I Am A 23 Year Old Male And I

Hello I am a 23 year old male and I ate sushi and stir fried 2 days ago and I have had black, liquid stools with what looks like seaweed or onion particles that have not been digested.
I have no pain, but I take whey protein, beta alanine, creatine, and MCL.
It's not uncommon for me to be gassy, and have liquid stools, but they have never been this color before.
should I see a doctor or wait it out?