if its not loosing weight don't panic yet. try a rat pinky. put the snake and the rat pinky in a plastic shoe box, in its tank, somewhere in the mid temp range. turn off all lights and leave in the dark for a couple hours. if it eats great if not there are a couple of other tricks you can try. one is braining, cutting the skull of the food item open and revealing the brain, not fun, or assisted feeding, then force feeding as a last resort. for the last two i recomend getting help.