after taking ambien CR for a few months with no real side effects...

after taking ambien CR for a few months with no real side effects all of a sudden I started doing bizarre things with very little memory of doing them, I walked around the house in the middle of the night in a blackout I cleaned things, ate things, made phone calls to friends and they couldn't understand me because I was slurring my words, My family said I was acting very drunk swaying back and forth and not making any sense. I"ve driven places and don't remember driving and that is enough to make you say o.k. something is wrong with this medication