Hey there, MayMande.

Welcome to the boards!
I hope that you don't take this too far and develop anorexia or bulimia.
With your mum having dealt with eating disorders in her life personally, that may increase your chances of developing the illness - so please be aware. You don't deserve an eating disorder and you never will... so don't inflict this illness upon yourself.
I think that it would be an excellent idea for you to discuss what has been going on with you lately with your Mum. You say she has dealt with an eating disorder - therefore she is sure to be very understanding! She knows what it's like to go through it, so she will do anything she can to prevent you having to go through that same misery.
Take care of yourself and best of luck with everything!
Ashlee