My husband, myself and our daughter have moved in with his mother after she had a fall. She is running ragged with housework laundry and such. Even to the point of hunting down things she misplaced. Gets pissed when we don't drop everything when she wants to go to the beauty salon. Its never ending she keeps my daughter up at night talking HELP IM drowning!!!!!
Meanwhile, set some boundaries. You need advance notice when she wants you to take her somewhere. There is quiet time after x o'clock -- no talking to daughter. With MIL, set up a housekeeping schedule. Also expect her to do the things she still can do. Can she fold laundry? Manage the dishwasher?
You are at a distinct disadvantage here, because you are in her house. Her house, her rules. Still, make a firm attempt at setting boundaries on things that involve you. And start researching other care arrangements for MIL.
Get your own place. Let MIL know that she needs to start having an aide coming in to help her.
Don't expect her to cooperate with any of this.
If there is other family members around..,discuss with them how JOINTLY you all can decide how to move forward from here.
But, get moved.