This is my corn snake, Pyro, I just got him out today to feed him. Last week when I got him out, I didn't notice any different colors, but he had a yellow tint around his face/upper body. His temperature usually varies around 80-87 degrees Fahrenheit (27-31 degrees Celsius), sometimes getting to 90 degrees Fahrenheit (32 degrees Celsius). His humidity is around 40-60 %, sometimes getting up to 70 %.
I'm really nervous about it, I'm not sure if I need to take him to a vet or not? I researched about it and some people said it's normal, and it happens usually after they shed, he shed around 2-3 weeks ago? He's around 5-6 months old.
I use aspen shavings in his tank, and feed him in a separate container. I feed him frozen pinkies once every week.