The symptoms are;
head tilting, seizure (rolling on the floor, kicking, eyes rolling etc..), grinding of the teeth, a limp on one side (my rabbit basically has forgotten it has it's front left paw now as it has paralysed it), lethargia, disorientation, balance problems, lieing down, not biting/scratching when threatened.
If this happens DO NOT try and cure it with TLC, the rabbit needs a vet, a vascular incident can cause a rabbit to forget how to eat, lose function of the bowels (which incidentally leads to gastric stasis v. Deadly), forget how to wash (leads to a build up of excrement near the tail), be unable to walk, drink. The first priority is to make sure you take your rabbit to a vet where a rabbit specialist will give it two injections, one should be steriods which prevent a second seizure/ or stop it as it is happening (this happened today and a second seizure is normally fatal) and the second injection can save your rabbit and it COULD recover completely as these injections help restore the normal bloodflow and nerve cells to replenish quicker. Please give your rabbit the medical care it needs, TLC will not work when it's brain is not receiving the correct amount of blood.