Yes. I felt mentally slowed and just plain "dumb." I feel like my memory is horrible. I kept telling my pdoc and she never validated it. So, I referred myself to a neuropsychologist who did extensive testing. And, it showed mild neurocognitive impairment, horrible auditory memory ( 1 percentile) and other impairments. My IQ was 20 points less than when I was tested as a child. It is frustrating and upsetting ( I used to be very smart and was a physician). Bipolar and the meds cause cognitive impairment. Period. End of story. I just wish my pdoc and T would have validated me instead of saying my mental slowness and memory problems was because I am a "mom." BTW, after that testing I got a new pdoc and T! I can totally relate.