Withholding information about command hallucinations is not at all uncommon.

I have a long history of command hallucinations personally. If she is having them, she is not currently being adequately treated. I am not dissing her psychiatrist, but treatment has to address the commands. The reason for this is that command hallucinations can be dangerous. I don't want to frighten you any more than you already are, but it is the truth. I once did something extremely dangerous in response to a command from God. It destroyed my life. I do not want you all to go through anything like that.

Please get this information to the doctor ASAP, if you have not already. Thinking of you and wishing you the best.