Ohhh yeah!
At one time I was taking care of my mom who had alzheimers, my son with bipolar, me with my issues, my middle son was enlisting in the Marines and my oldest who has his issues. I was really burning out.
Eventually my mom got to the point I couldnt take care of her anymore at home because of the combination of her declining health and mine and she had to go into a nursing home. That relieved some of the stress but not all of it.
There are sites on this subject.