I’ve had ECT three times. The first time was similar to you. I was in the hospital forever and meds were not touching my severe depression. ECT finally pulled me out of the funk. However I did not get manic from it.

However, a couple of months after it ended my dr in the partial program said I was hypomanic. I dismissed her because I thought I was just happy finally after years of being unhappy. Looking back I can recognize some hypomanic symptoms but they didn’t ruin my life so I don’t suppose it matters.

If antidepressants can flip someone into mania surely ECT could too. I hope you find a resolution to your issue. I hope you do not have bipolar disorder but if you do maybe a mood stabilizer or something of that ilk is needed. I hope you will continue to work with your doctors in IP to make sure you are truly stable before you leave.