TMI toddler poop


Yesterday my 2 year old did not want to eat very well. He did not eat anything in the afternoon, even after suggesting different foods. I didn't think much cuz that's how toddlers are. TMI .... Well today he's been having diarrhea with like chunks and stringy mucus. He hasn't been eating well again, in the morning he only ate half an egg and fruit. I made him chicken soup for his tummy, and he doesn't want it at all! His doctor won't be able to see him until Thursday afternoon, idk if I should wait or take him to urgent care! Help mammas!! Do I take him in or wait it out till Thursday??