Hello
@Flower58 and welcome to the forum from me too. You have come to the right place for information and support.
As has been advised, the best thing to do in this situation is have a chat with your GP when circumstances allow. Many treatable conditions, such as depression, stress, thyroid problems, vitamin deficiencies etc., can cause dementia like symptoms so it's important to have a check-up. Please don't cause additional stress by jumping to the immediate conclusion that it's dementia. On the other hand, if it is dementia then a diagnosis may open up support for you both in the future.
Here is a link to a Society Fact sheet about the diagnosis issue. Just click the second line to read or print the document
Assessment and diagnosis (426)
PDF printable version
Now that you have found us I hope you will keep posting as the membership has vast collective knowledge and experience.
I hope that you both manage for the moment.