Does anyone else have intrusive thoughts that lithium pretty much gets rid of?

I've initially been hesitant on committing to my meds but the internal silence that lithium give me makes me wonder if that's how it's supposed to be. 

I've more or less gotten used to a stream of thoughts that are more often that not negative that it almost takes effort to think when I'm on lithium. 

I'm schizoeffective so I'm not sure if it might have something to do with it or maybe I'm over medicated at the moment.

Just wanted to chime in and see if anyone has the same experience as I do.