Hi , I'm James DVM MRCVS and would like to help you with your question
Let me ask you some questions first :
1. when you say she bangs it into the wall , do you mean that she stumbles as a result of instability or she actually backs up her body to hit the wall.
2. Is there any vomiting or diarrhea to report ?
3. is she on any medication
4. has she got access to any medication (could be human) or any foreign material such as poisons or chemicals
5. is she showing any other strange things in the shape of acting strange