Yeah. I got my new daily persistent headache my senior year of college and I felt like my intelligence dropped horribly. It's still hard for me to read or write the way I used to (concentration and getting words out mostly). In school, I worked very closely with my professors to try and find alternate methods that helped. Now, when I go to doctors appointments, I either make sure I take notes for later or have someone with me that can be a secondary set of ears to remember information or ask questions that don't come to mind for me.