My notes are automatically being sent to my mum's email account on my MAC computer... My iCloud account is under my email ?
I have looked through my iPhone settings over and over, and there is nothing to suggest that my notes have been selected to be shared through iCloud.
Welcome to the Apple Community.
Check the phone isn't logged into your account in settings > Mail, contacts, calendars and check your Mac is not logged into her account under system preferences > mail, contacts & calendars.
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