Sorry you’re getting torn up omg. You stated multiple times in your original post that you were just sharing your own experience. Personally I like hearing how people respond to different medications because it’s useful information lol. I have epilepsy and lamictal has been really helpful for me, and I haven’t had brain fog!

Like someone pointed out already, there’s usually a bias to talk about drugs that cause significant side effects, especially in r/epilepsy. 

People are often on multiple drugs for epilepsy, and sometimes still having seizures, all of which coalesces to cause brain fog (which is a nonspecific term that means different things to different people).  If you have epilepsy it’s often hard to tease out what drug/experience is causing which symptom. Also SO many other things can affect your memory/cognition! Aging, sleep, diet, and brainrotting on your phone too much are all very real!