bipolar disorde
"Horrible, horrible, horrible. 
My neurologist of 10 years retired. He mentioned and prescribed ambien for my chronic insomnia. Also did regular labs and sleep studies.
He referred to another local neurologist who specialized in sleep.  Without having my previous medical records and a brief 5 minute office visit,  the doc, writes me a 3 month refill on ambien. Ok, then he told me I was bipolar manic and gives me script for lamotrigine. 25mg to taken twice a day. I was a bit confused as to how he came to take diagnose after 5 minutes with me.  I've never been told or treated for manic bipolar.  He said it helped with my sleep. I took 2 doses as prescribed. I blacked out and work up agitated, confused, crying with thoughts of suicide.  I flushed the rest."