Is it permissible for a man suffering from a controllable mental disorder to marry without informing the girl and her family? And is not informing considered deception?

As long as the bouts of psychological disturbance that the man experiences are not among the psychological illnesses that are commonly off-putting (such as permanent or intermittent insanity or epilepsy), or medically contagious, or those that impede intercourse, then it is not considered a defect that must be disclosed during the betrothal, and concealing it is not considered prohibited deception, nor does it establish grounds for annulment after the marriage contract.