Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Loss of bowel and bladder is typical of seizures. If it were a Board question that would be the answer. Metabolic and electrolyte issues, even panic and hyperventilation commonly cause seizures in someone who doesn t have epilepsy. If tongue biting, then, that s it. So, typical categories for sudden loss of consciousness are brain and heart. In brain category is stroke and seizure. In heart, is heart attack, arrhythmia and loss of blood pressure control. The loss of blood pressure can also occur suddenly with illness, or electrolyte or hyperventilation or straining on the toilet. HOLTER monitor is generally useful and can sometimes show seizure activity in addition to showing heart issues. Hope I have answered your query. Let me know if I can assist you further.