I'm worried that this new symptom is another sign of dementia and wonder if anyone else experiences something similar. It started a few weeks ago. Arriving back from shopping, I was so exhausted I had to go straight to bed, leaving my shopping bags still full up in the kitchen. I was so tired I was almost in a daze. I have been finding it more hard-going doing the shopping. It feels like there's so much to think about and my brain's overloaded. What used to be a mundane task is now quite a challenge. But I do feel refreshed and more clear-headed after a sleep. Does this happen to anyone else?