I echo the others thought of concern here. With the amount of stress you're under it would be perfectly understandable if it threw you into a mania or pschosis.

As I've mentioned before I'm not always good at the sympathy / empathy thing so I hope the following doesn't come off as insensitive but I find it concerning that your T would tell you to withhold information from her because of the impending divorce. As you mentioned that's made you scared to share and that's e last thing you need right now. The harsh truth is that if your mental health becomes an issue in the courts what you say now in therapy isnt really going to affect what the courts think after they view your previous records anyway, and if they want to press the issue of your mental health they can have you evaluated by a court ordered psychiatrist. I don't say this to scare you, my mother is a psychologist and my dad is an attorney, and I saw how they systematically (and unfairly) picked apart my sisters exhusband during her divorce and it was horrible. Even if your husband doesn't want to press your mental health issues in court his lawyer is definitely going to want to try to exploit it however he can.

Anyways I'm rambling now, but I wish your T hadn't scared you against sharing, I think that was wrong of her. You need someone you can talk to, especially with the mania you're experiencing right now. I hope things get better for you.