Hello
@angelhugs, you are welcome here and I hope you find the forum to be a friendly and supportive place.
Yes, I think seeing other people is a symptom of dementia. My wife will often see both people and animals and hold conversations with them. Having said that these could also be a side effect of a new medication or an infection so if either of these things apply a chat with the GP might be in order.
Diagnosis can take a while because many things can cause dementia like symptoms but be treatable so these have to be ruled out before the leap is made to dementia. My wife was being treated for anxiety and depression for many years prior to her diagnosis.
I hope you can take a good look around the site as it is a goldmine for information. When I first joined I read old threads for information but then found the AS Publications list and the page where a post code search can be done to check for support services in ones own area once a diagnosis is in place. If you are interested in these, clicking the following links will take you there
https://www.alzheimers.org.uk/get-support/publications-factsheets-full-list
https://www.alzheimers.org.uk/find-support-near-you
You will see that there are Factsheets that will help with things like getting care needs assessments, deciding the level of care required and sorting out useful things like Wills, Power of Attorney etc.
Now that you have found us I hope you will keep posting as the membership has vast collective knowledge and experience.