Maybe you should just feed in his enclosure. It might be stressing him too much? I know you've been doing that for a while and the snake didn't have a problem with it but maybe he just doesn't want to be taken out to eat anymore
Wow just saying you're one brave soul. I only have a hatchling and when she's hungry she strikes within 2 seconds at most when presented a rat! I wouldn't even dream of sticking my hand in there to take her out! Haha