Why isnt my garter snake eating ..

Brief：
I have a garter snake thats a little over 2 years old. Over the past few weeks, she hasnt been eating as many feeder fish as she normally does. I usua.. 

I have a garter snake that's a little over 2 years old. Over the past few weeks, she hasn't been eating as many feeder fish as she normally does. I usually feed her 12, but recently she's only been eating about 8. She hasn't shed in a while either. Could it be related to that? If so, should I just let her take her time, or is there something I should do? Are there any other possible causes?

depending on the weather. if it is to cold they won't eat. but if it is warm and she is still not eating try- uping her heat source, usually when the heat goes to low they slow down and not wanting to eat as much. try soaking her at least once a week and try to keep her temp at around 75-82. but you will know when she is getting to hot. the soaking will help her skin and the keeping warm will or should increase her eating. if all of this doesn't work than you might have to take her in to the vet because she might be sick and with snakes it is hard to know what they might have. good luck on that . they dont need to eat all the time, when they dont eat, they dont want to eat, they can go months with out eating sometime because when they begin to shed and grow they dont have much of an appetite I’ve had some troubles getting the little monsters to start eating, and I think there were several reasons for this. For one thing, they’re too small for some of the more conveniently acquired food items, such as pinky mice or bait-store nightcrawlers. Some of them — my wandering garter snakes, for example — looked good and plump at birth, and weren’t hungry, probably due to retained egg yolk. Others had trouble recognizing what they were being offered as food, either because it didn’t move (they responded to live fish but ignored fish fillet and cut-up worms) or because they wanted to eat worms rather than fish or vice versa. Some baby garter snakes would eat anything I gave them; some were fussy; some refused everything I could find.