I would say the refusal is a combination of health issue and husbandry

1# Keep your humidity at 50%-60%

2# Provide 2 tight identical hides (avoid log hides)

3# Provide gradient temps (measured with a DIGITAL thermometer), you need to provide 80-84 on the cool side and 90-94 on the warm side.

Note: BP do not need any UV they are nocturnal.

Normally, i keep her in a 20G (unless she's at my bf's place where we've got a 30L)
No sure why or how often your BP moves but this is definitely a good way to stress her and of course a stress BP will not eat!

Also how big is your BP? Providing adequate enclosure is very important (key word for a BP is SECURITY). Too big of an enclosure can be stressful.

Please go through this caresheet http://www.ball-pythons.net/modules....warticle&id=59.

A few tweaking will likely help your BP resume feeding, in the mean time limit your handling (Only do so when necessary) until you BP resume feeding.