I think my Mom may have had a concussion. She is 84 and her speech is slurred, no signs of a stroke, had her for head contrast scan. I was told she is aging naturally. I don t buy that. SHe is very young at heart and loves to socialize. However, now that she has difficulty speaking, she tends to shy away from people. Is there anything I can do for her or get her Doctor to do to confirm this - and how long does it usually last?