I think you have to blame the anxiety instead of the bipolar, as has already been said. I'm bipolar I, with PTSD, ADD, and anxiety disorder and it wasn't until the anxiety was properly treated that I was able to stop snapping at people. Talk to your doctor about it.... you'll need to *want* to stop snapping at people and seek alternative behaviors before this will change. For example, I will sometimes say to my husband that I *want* to scream instead of actually screaming. That helps.