I'd be careful if I were you (sorry, I don't mean to sound like your mother). I've been on Lithium for the past 12 years with dosages ranging from 900 - 2100 mg/day. I've been off of Lithium twice during these years. I felt fine in both cases, but then eventually had hypomanic episodes and my anger returned. I diligently take Lithium now. One thing you might do is do a mood chart. I use the following one on my blog http://bipolarceo.wordpress.com/mood-scale/