This is the email I recieved from her today. So, still not sure what's causing the drooling...
"Hi - I have not been online for a week, sorry.
I have since taken Charlie to Dr. Wade in Lancaster (new vet), she was really nice and used to xrays to really explain the compation of his roots to me. I feel alot better, and understand it better now. She said he also and some bad spurs, and removed them. She didn't even need to sedate him that much!
He's still having trouble eating pellets though, and she said he was losing weight based on his records, so I ground up his pellets with my blender and made a falafal like mash out of them. He went WILD and ate all this really fast! I give him a little bowl of this every night, with the meloxicam she gave me mixed in, which she thinks will reduce his impaction pain.
He's still drooling really bad every now and then, and his fur still clumps, but he's eating alot better... he even tries to eat the whole pellets I give him.
He's still a happy energetic lil guy, running all over. :-)
Thanks for your help!"