I want to add one more thing and then I'll move on. i don't want to offend you or anyone.
I can't tell you how many things in my own life went untreated because proper treatment can't be done secretly. I see it all around in my daughters friends, even SHE has become good at diagnosing the problems with her friends. Hiding this isn't appropriate, it creates shame, guilt, fear and well.. secrets. None of these are ways OUT of a problem that starts with hiding, stealing, fear and self abuse etc.
Please don't worry about what anyone, even grandma will think. My folks avoided stuff in order to not cause my grandma a heart-attack in her old feeble age. She lived another 12 years!