Hi.My dad walks with a gutter frame.For the last 2 years he has only walked in the morning with the carers and in the evening with them.He now has also started to walk lunch time and tea with me.So he has gone from four times a day to up to eight times a day.But he is also getting very irritated with me and is starting to lose patience .He has had a stroke in 2017 and was diagnosed in 2016 with vascular dementia.He talks perfectly well apart from his repetitive questions.Could he have progressed?