sick and breast feeding ?!dhould I give formula

Sharon
It all started Wednesday when I had a stiff nose and the baby kept having watery poo but mustard yellow... I tried keeping myself hydrated with water and orange juice I felt better yesterday but o woke up today with sore throats and a stiff neck... not sure if I should keep breastfeeding baby because his watery poo is now dark green which isn't the norm for him.. emailed the doctor but it's the weekend and new years so any suggestions?? I drunk some pedialyte target brand yesterday because my sister told me it would flow through my milk and keep him hydrated