She could be going to more than one doctor to get the prescriptions she's hooked on. With the odd behavior she's showing, she may have turned to getting it through somebody else. I think you can get some of that stuff on line....IDK. That could account for the vanishing money.
Anyway, I believe her health situation is more important right now...more than OM. I agree that you need to protect your children and your money.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!