Blue eye stage of shedding... To feed or not to feed?

Using your hand to tell the temp won't really work since your extremities vary in temperature a lot. Trust your thermometer, or get a temp gun. You could turn it up a degree or two and it won't hurt the snake.

The burrowing thing is pretty common. My babies on loose substrate will make a little hole for themselves, and the adults on paper will hide under the paper.

I just thought that you will be able to feel a lot of heat coming from a spot that's 91 degrees. I definitely want to catch her shedding tho. Hopefully I'm not at work or sleeping when she does!

Most of mine eat regardless of shed/breeding/etc, if there is food present they take it.. As for keeping the rodent alive till the snake chooses to eat, before I went from 1 snake to double digits I kept a 10 gal tank with a water bottle and food dish on hand for that very reason, just tossed in some dog food, bread, etc. to keep it alive (not the best selection for a rat but they normally didn't last very long before the snake(s) were hungry again)

No pet store that is half way decently ran will take back feeder mice/rats. It's way to risky in spreading disease. Would you want to buy a feeder that possibly played in someone else's snakes poo?

you will not feel a lot of heat from something that is 91, your body temp is 98.6 and if you take your heat gun to your hand it will probably regester mid to hight 80s. You should feel it as a little warm if not a little cool to the touch