Not all seizures look the same. For instance, generalized tonic clonic seizures are characterized by jerking and stiffening of the entire body, whereas in absence seizures, the individual might appear as if they are staring off into space. There are also other seizures that might involve the twitching of a finger or one area of the body. Side Effects. These tend to occur mostly in the first month. They include sleepiness and fatigue, muscle weakness and coordination difficulties, headache, flu... read more