Definitely a RI.. and rough belly is NOT normal for a blood.

Until you get to the vet, up the temps to 85 warm 95 cool.. heat gives them more strength to fight it off, and keep the temps on the higher end of the range while you give antibiotics.

Also.. when feeding, it's really easier on the snake to feed in the cage. And, no, she won't try to bite you every time you open the cage either.. well, she may anyway because she's a blood.