Bt if you had epilepsy or diabetes or chonic asthma wouldn't you tell then? It may not prevent you from doing your job but from a safety point of view is it not beneficial that an employer is aware of the situation in case of emergency? Is it not the same should you have a major panic attack? Or if you had bad side effects from a change to medication? Let's not forget depression is a killer and the best way to prevent that from happening is talking. The more me talk to people the better their understanding and just is the only way to tackle ignorance.