Thankyou so much for replying to my post.
She has had her thyroid checked as far as I know and she got the all clear although thyroid problems do run in our family so maybe they have missed something here.
Mum is off to the Dr today and demanding she get an MRI in case it is MS so will see how that goes.
Good luck to you and will post to inform you of how she goes today, thanks again.
Sally from Sydney, Australia.