Mum Repeating Words

So recently, I’ve noticed that my mum has been repeating words when talking to me and my sister. Last week my mum was asking if I wanted a hot drink. She said “Daisy, do you want a hot chocolate, a cup of tea or a hot chocolate.” I told her that she repeated hot chocolate and she seamed to just ignore me. (she does that a lot)

The next week it happened again, she asked “do you want a hot chocolate or a hot chocolate.” Again I told her that she repeated it twice and she did the same thing again.

Then just a minute ago she’s telling me older sister over FaceTime a story about a table and some chairs. she said something about some chairs, a table and some chairs. Again she repeated a word. Should I be worried or something? My mum is in her early 50’s and nothing like this has happened before.