Pictures will help with the nose issue; however, you can't post pictures until you get -5- posts.
That being said, you can link the picture URL if you're using Imgur:
Code:
[img]URL in here[/img]
And regarding the "going off feeding"...as long as the snake is looking healthy, body-wise, it's okay if a snake goes off for even a few months. Have you changed anything recently, have the temperatures in your house dropped cause you're trying to reduce electric/gas bills? A reduced temperature can trigger a change in eating, as it has with a few of my snakes, so don't get too concerned after a few weeks.