I have a baby BP about the same size (mine is 310 grams but basically near the same stage of life). If your snake is clean on all it's fecals and it's environment is correct, I'm pretty confident in feeling that these weekly trips out are probably what's wrong.

Think of it from the snake's point of view. It cannot conceive of why it suddenly leaves it's place of safety (it's home and it's hides)...suddenly it's in an environment of music, fast movement, strange smells and so forth. For any snake that might be disturbing, for a small ball python that's got to be very terrifying and a scared, stressed snake is a non-eating snake usually. At such a young age and small size, it is more prey than predator in some ways and unknown environments are stressful to any snake really.

Personally I'd let the baby settle in more, cut back on any handling till it's eating consistently and then work back up slowly but then that's just me.


~~Jo~~