So i just found out...

[Freakie_frog]

Hmm, that is interesting. When I bred/kept rats (as pets) I sometimes ran into issues with them that looked similar to a spider wobble because of poor eyesight. They bob and weave their heads back and forth to compensate for very poor eyesight (pretty common in albinos).

I've seen that also in our colony.. RI's in rats will also cause it almost like an inner ear infection.. Like I said we simply don't know why they do it they just do..