It is wierd. My labs a week ago only showed .6. She wanted to increase a little so we went up 300 mg a day. She would have expected it to come up to maybe .8 and they shot up to 1.8 in a few days. She asked me if I took Motrin or something and I haven't. After she said to quit it altogether, on the ride home, Ithe only thing I have done different is I have been drinking those 50oz Diet RockStars. I haven't told her about it yet, I go back tomorrow. Could that have some chemicals in it that could cause my lithium to shoot up like that? I am NOT going to do depakote, scary stuff. I have been drinking tons of water and I think I feel a little better today. I have a good mind to quit it all.