My mom 86 yr old my mothers memory was perfect till this all happened caught Valley fever went into meningitis they saying it triggered dementia don't understand how. I have asked her whats wrong and just says I don't know asked if shes ok says yes says shes gets confused and scared of being alone she screams a lot calling my name if I leave the room for a bit after waking up! It only happens if shes alone for a bit or after sleeping or after taking napes she don't get that much sleep, I say sometimes 3 to 4 hrs a day sometimes 5. Shes done this before but more so now recently fell at a nursing home. Said they found her sitting on her rear but I think I found a lump on back of her head. Help me!