My dog dreams of food

[Neapolitan Ice Cream]

Tillie the dog was dreaming last night. First, her legs twitched. Then, her entire body twitched - she was running! Finally, her front left paw trembled… that's her food paw! She'd dreaming of food! Don't worry, she's fine

 

[WDWEPCOT]

Mine growls and barks and twitches all over - what does that mean ?? When awake he never growls and rarely barks