Clonazepam and menopause

I was just prescribed Clonazepam this past Wednesday for sleep and by Friday I was in a deep depression and crying for no reason. I am already on an anti-depression medication and several other meds for severe back problems and other conditions. I don't know whether the Clonasepam isn't mixing well or whether I might me going through menopause or what? I was hoping this medication would work for me, it sure helped me sleep for the first time in years! What do you think the problem is?