Hi
@Ramblingrose. For a long time I think my husband's family thought their mothers confusion was due to her increasing deafness. Certainly sometimes you could see she answered a question she thought she'd heard rather than what had actually been asked. Now though it is obvious that the main cause of the confusion is her vascular dementia.
About five or six years ago one of her daughters insisted she went to the audiology clinic and got hearing aids. She couldn't get on with them so I was called in to try and help. I'm severely deaf, so talked through how to get used to wearing aids etc etc. It didn't work as by then her brain wasn't capable of processing the new sounds she was hearing.
By all means get your mother's hearing checked out, but wearing hearing aids isn't like wearing glasses it can't totally correct hearing loss. When you first wear aids you need to work out what the sounds you are hearing are. I think it might be too late to make a difference, but if you know she has hearing problems you can do simple things such as make sure you are facing her when you talk. Talk slowly and clearly and don't shout. Shouting doesn't make you hear better, all it does is make it sound someone is being cross with you.