I'm on four different medications, and I haven't noticed any change in my creativity (I'm a writer in my other life)......if anything, I'm better because my thoughts are less disorganized. I do have some flattening of the emotions, but this is not a bad thing--- I'm still able to experience both joy and sadness, just without being so overwhelmed. And as for personality changes.....my experience is that the meds have simply made me ME again, only better.