I've never been on lithium to be honest and it's by choice. I dunno what it is about the drug but it kinda scares me and I've fought tooth and nail against doctors (who for some reason always wants to put me on it).
I'm currently on lamictal, which I've been on for years with no side effects, and getting off of rispherdal and starting latuda. When I was on the ap rispherdal I suffered from no side effects. I just started latuda 2 days ago but other than some upset stomach (not bad so I can handle it) I've experienced no side effects.