The shifting of brain is called Brain herniation. Bleeding or swelling in the brain may cause pressure that forces the brain downward in the skull. This results in a herniation, in which brain tissue is forced through a small natural opening. Herniation compresses brain tissue and thus damages it. Herniations are mostly associated with Generalised seizures.
The two main categories of seizures include partial seizures and generalized seizures.
Partial seizures are those that begin in a localized area of the brain. This type can be further subdivided into:
Simple partial: There is no change in consciousness.Weakness, numbness, and unusual smells or tastes may be experienced. Turning the head to the side, twitching of muscles, paralysis, visual changes, or vertigo may occur. When symptoms spread slowly from one part of the body to another it is termed as Jacksonian epilepsy
Complex partial seizures (temporal lobe): there is alteration of consciousness during the event. Patients may have some symptoms similar to those in simple partial seizures but have some change in their ability to interact with the environment.
Generalized seizures involve larger areas of the brain from the onset. They are further divided into many subtypes. The more common include:
Tonic-clonic (grand mal): This subtype is mostly associated with seizures. Specific movements of the arms and legs and/or the face may occur with loss of consciousness.It is preceded by an aura. It causes abrupt fall and jerking movements of their body and head. Biting of the tongue, drooling of saliva and urinary incontinence may occur.The patient may remain unconscious for a period of time. The seizure usually lasts 5 to 20 minutes. Confusion and sleepiness is experienced along with weakness.
Absence (petit mal): There is only a loss of consciousness. Patients appears to be involved with the environment, stop what they are doing, simply stare for 5 to 10 seconds, and then continue their activity.
Myoclonic: these seizures are associated with a brief jerking movement that arises from the central nervous system, usually involving both sides of the body. The movement may be very gentle or very noticeable. There are many syndromes associated with myoclonic seizures, including juvenile myoclonic epilepsy, West syndrome and Lennox-Gastaut syndrome. Cases of myoclonic epilepsy occur during the first 5 years of life mostly.
Please keep a track of your symptoms and try to relate them with the Epilepsy types. You may discuss your symptoms with a neurologist and get a proper treatment. Hope this helps you. Take care and regards!