I would tell your t and your pdoc both. Your meds might need tweaking, or you might need more support for awhile. Tell them you took the percoset because your moods can be hard to manage, but you don't feel you need hospitalization, just a better meds/support coping strategy when things get intense.

I was in the hospital for ten days in January, and I was shocked by how fragile I felt emotionally when they released me. It took me about three or four months on my new meds to start to feel OK again.

You might be experiencing re-entry anxiety. Definitely ask for help.