My 3 year old rat, Syd was just eating a cocoa puff in his cage, minding his own business. Then all of the sudden, he started to flail around rapidly, and his body was jerking around violently. This lasted about two minutes. I don't know exactly what happened but my first thought is a seizure. After, he went about eating the rest of his food, and now he's sleeping. Does anyone know if this was a seizure or not? And what causes this terrible thing to happen to my boy??