I am a 69 year-old retired female attorney. I have likely suffered from ADHD and OCD all my life. I rode horses for 40 years (now retired), first over fences and then in dressage and suffered a number of concussions in horseback-riding mishaps over that time. I experienced post-Covid immunization brain fog after my two Pfizer shots in April 2021, and then suffered a TBI in a car accident that was not my fault a year later. Research of the impact of ADHD on the minds of seniors is still in its infancy. Despite my history, my issues -- brain fog, confusion, cognitive overload, exhaustion, my husband is typing this post because I can no longer navigate digital devices, etc. -- were "diagnosed" by no less than three treaters as Alzheimer's, which a blood test last May proved I didn't have. All other common neurodegenerative processes have been ruled out. A neuropsychologist who conducted an evaluation of my condition blew off the TBI I had sustained in the car accident, saying that because I had no skull fracture or intracranial bleed all effects of the TBI should resolve in 6 weeks to three months. After living with an Alzheimer's diagnosis for four years, my neurologist now says my deficits are the result of "chronic TBIs" exacerbated by anxiety. (Duh!). The ignorance and biases of the medical profession when it comes to these issues is profound, which makes all the more important Mayo's expertise and this chat group for mutual support. I encourage all of you, however, to prepare for yourself and your providers a very detailed medical history going back as far as you can remember and regularly update it with what you notice about your current deficits and how they change over time. Childhood illnesses, traumas, etc. can prove critical to any diagnosis. Don't assume that anything is unimportant. Let your providers decide what is relevant and what is not. And the nature and progress over time of your signs and symptoms -- what's gotten better, what's gotten worse -- is also critically important. Put it all in writing so you will always have it and can refer back to it and supplement it as needed. Above all, remember this was not your fault, be good to yourself, and stay strong.