I have severe panic attacks and was taking Xanax but they changed my mindframe to much, I was on klonopin for awhile then my dr I go to now does not like klonopin so she gave me lorazepam(Ativan), im just wondering if for anxiety/panic attacks and being bi polar, is Ativan or klonopin best for me? I have a naturally HUGE tolerance to medication, so I have to take high doses, so which will keep my panic attacks/anxiety under control and give me energy or atleast not make me pass out.