my sister has attacks with severe headaches and sudden chills then it ends with shivering like fits?
this is inevitably epilepsy but a routine eeg only records about 20-30 minutes of brain waves (however the entire eeg procedure takes about 90 minutes). because 30 minutes is such a short amount of time the results of routine eeg studies are often normal even in people known to have epilepsy did she get a 90 minutes test?