I have been diagnosed with male hypogonadism by some drs. my sister has a cushingoid appearance. lack motivation + rapid weight gain. what could it be?

She needs to see doc: Just b/c you have hypogonadism doesn't mean that her hormonal health is necessarily correlated w/yours, although we try to take an extensive Family History looking for conditions that tend to run in the family. However, hypogonadism isn't one of them. OTOH Cushingoid appearance w/lack of motivation plus weight gain need to be evaluated by family doc & referred to Endocrinologist as appropriate.