Hi I am a 68 year old female who recently started to forget things. I will let the dogs outside and 15 minutes later wonder where the dogs are and then remember they are outside. I passed out while standing and fell on the back of my head. The fall was last August. I never had it checked out I read that concussions don t always present symptoms right after. Also other things too walk away and forget about something in the kitchen but also have my daughter and her 3 teenagers and 2 dogs living with us and am stressed