I bought the chicken yesterday at the upper class supermarket and on the package says expiration date not until three days later but when I wanted to cook today I found the chicken showed mucus or it kinda like wet slimy paint I smelled it but didn't smell bad at all, is the chicken still fresh if it shows that mucus? i have already cooked it for my baby meal and fed him but 2hours later he vomited I am so worry and wondering whether this is caused by the food i cook for him? how quick you can tell if you get food poisoning?