My California King Snake over the past year has started to slow down, and refuses to eat live mice like it usually did before. I know thats not good to do. Over the past few months she has seemed to get weaker. Just a little over a week ago I fed her a mouse and she still has not pooped. Soon after eating she fogged up and started the shedding process and its bean about 6 days since she fogged up and she still hasn't shed yet. She is around 10 years old. Could she be dying? I know that they on average only live to be 10-15 years old. So she is right around there. Please let me know what you think is going on.