I was apparently a bit too hasty to draw conclusions. My bladder went into protest again and refuses to empty itself completely. Had to go back and get a catheter again, this time for 7-10 days. They still think it's Abilify, no other logical explanation available.
That's all I have energy to write. Today has been exhausting, scary and stressful. Will update again in 7-10 days, I suppose. I hope I don't CTB before then because of this...