you need to tell us more about his enclosure (home) and what the temps are, both the air temp and your hot spot. what are you using to heat the enclosure. spud can just be going off feed which is normal for a ball python, but if the temps are off or the humidity is off that can make the snake go off feed. If this is the problem, it needs to be corrected. you need to give us more information so we can help you.