A few days ago we adopted an 8-9 year old desert kingsnake. He was hatched with a pretty bad kink in his spine, his original owners were told that he would "grow out of it" by the pet store and when he didn't, they didn't want him anymore
. A friend of a friend of mine took him in and has had him for about 7 years although she said she hasn't held him in about 5 years. She asked me if I would take him about a month ago and I said yes. Then she contacted me and told me that he had been biting himself! I asked her how much she was feeding him and she said one jumbo mouse every two weeks. I told her that he was probably not getting enough food and to feed him more. So she started to give him one mouse every week. We got him on saturday(3 days ago) and he had eaten a large mouse that day. After he defecated we took him out to hold him and he immediately started biting himself in my fiances hands! So he quickly put him back in his aquarium and I shot this footage with my phone.
In the video he is only really going after his tail but he was attacking any part of his body he could reach. Do you guys think he is doing it because he is still hungry or do you think it is a pain response? You can see the kink in his back, it's about 1/3rd of the way down his body, is this something that could be causing him pain and the only way he can deal with it is biting himself? Any input would be greatly appreciated.
I also wanted to add, this is my first post under this name, years ago I was a very active member here though, it's good to be back 




















