Seeing Chinese character, I think we share some background.
With my mom, I don't lie but I am very careful in selecting piece of truth to her.
is this similar to lying?
I don't think so because I know her too well. I don't want my problem to haunting inside her!
it's true when I'm telling her that "I'm going to get healthier." with the face "this time I mean it!!!!!!"
I would give her a confirmation hug and start talking about food for this is the topic that she would best be a part of my healthier plan.
All the best for your.