How long have you had your fursona for? When did you first create them? Did you go through a bunch of different designs for them before they became what they are today?
Savannah is actually my about fifth fursona I've gone through. My first fursona was a depressed maned wolf with scars, my second was a wolf/kangaroo mix or a wolfaroo, then I was a wolf/kangaroo/parasaurolphus (or my favorite dinosaur) and I called her a Canis Sauraroo, she was kind of my vent/rant 'sona who had scars like my first, my next one was a creature I called a Grace Angel, Bella was kind of a settling point for me, she meant a bit but not much to me. Savannah is fairly nee, I've probably had her as my official 'sona since about the beginning of this school year. She was a beloved char for a while before becoming my 'sona.
So I've been through a lit, emotionally and mentally with my 'sonas, it is a rollercoaster of emotions for each, one was a peak in happiness, another was rock bottom, Savannah is a high point and I don't intend on changing her any time soon.