Have you had thyroid tests run? When did you change her diet to raw? Usually there will be a difference in the structure after the diet change because there is more muscle mass with raw fed compared to the carbs in kibble.
I'd also do some core strength conditioning exercises regularly to keep the body toned.
I would add in raw green tripe to the diet. Or at least add in digestive enzymes and probiotics. Her gut flora may be off so she'se not digesting properly. Also make sure you are giving enough bone, it digests slower so will maybe help with the empty stomach bile barf.