FluffyDinosaur, thank you! I haven't been depressed, but maybe my PTSD may be interfering? I went through a really bad manic episode two years ago that was extremely triggering, which is why they upped my dose. So the constant intrusive thoughts would probably make cognitive functioning challenging for anyone? I think it's the sudden onset that concerns me most, because it's not like the medication/PTSD is new. But maybe it's just taking its toll?