The dog is having fits where the dog collapses with rigid extension of the legs. The dog becomes unconscious and may stop breathing for a few seconds. There is rhythmic jerking of the legs. Sometimes it is also accompanied with chewing, drooling, or urination and defecation. As the dog regains consciousness he appears disorientated and confused. The dog may appear to stumble into objects as he attempts to walk. The seizure could be epileptic or non-epileptic. The causes are mostly neurological though could be due to toxins or irritants.