Yup, and not just if unstable. It's just been minor things mostly, like conversations, or not remembering if I've actually done certain chores, returned phone calls at work, stuff like that. When i was on valproate i would literally remember nothing of chunks of time, like go places with a friend and have no memory when they told me about it later. But that doesn't happen now, or in a long time. Still, the memory lapses i have now freak me out, and seem more frequent.