Corn Snake Behaviour

Question
Hi, I've had my corn snake for about 2/3 years now, though I'm not exactly sure how old she is. She has been regularly feeding and all that; everything has been good up until now. I usually feed her about ever 1.5-2 weeks, sometimes a little bit longer. From the very beginning I have fed her thawed mice by holding them by tongs and letting her strike at them, and this has worked fine. Problem is: 4 weeks ago, I tried to feed a mouse. She struck at it and grabbed it, but then suddenly let go. I picked the mouse back up and wiggled it in front of her, and she slowly ate it, instead of striking at it like she usually does. Though this was unusual behaviour, she swallowed it and has been fine. 3 weeks after that I fed her again (I know 3 weeks is a long time, but I wasn't able to purchase mice for that duration). This time, she didn't even strike at it. I assumed she wasn't hungry, even though it had been a long time. 2 days after that failed attempt, I tried again. This time she did the same thing as last time; striking it and grabbing it before letting go. I decided to just leave the mouse in there for a few minutes. When I returned, she had swallowed the mouse and was crawling around, seemingly perfectly fine. My question is, do you think this will be a regular thing? (The striking/grabbing/letting go thing, I mean) It is a bit of a hassle and really stresses me out and gets me scared for her. Is anything wrong with her or should I just let it pass? Thank you so much.

Answer
Colubrids should really be fed once a week as adults, they have been known to try and eat themselves if not fed for periods of time.

Are the snakes eyes normal? No stuck shed? Sometimes snakes just do not get as aggressive, the reason could be anything from stuck shed on the eyes to improper temps. Make sure temps and humidity did not change at all.

If there is no stuck shed on her eyes then I wouldn't worry about it. Do a quick check of her mouth as well to make sure there is no mouth rot at all.

I have snakes that can come flying out of their bins one day and the next feeding, I can touch their noses with the rat and they grab it ever so gently.. like there is as little interest in the rodent as possible. But usually if there is not a issue they will get back into their " dangerous" feeding mode.