"It's wise to avoid disclosing anything related to your mental illnesses to a company that you work for unless you have no other choice. Never trust a company that you rely on to make a living with this kind of information; it's one of the fastest ways to lose a job in most companies."
I think there is a big difference between seeing a therapist or being medicated...However the above statement is true, generally. I have disclosed my condition (and later thought about it) - I work for an Indian casino and they generally(it is the native tradition) hold us in high regard and would never fire us unless we do something that alienates or angers customers. Or when medicated we cannot perform mentally. Even then we can take a med leave (I am planning to take Nov/Dec off) However my situation is unique. In hindsight I should not have disclosed it) but I am planning to leave in 3 years anyway....