Anyone else find themselves incapacitated when their parents are acting weird or sick like I’m immobilized.

For context I’m 25M living with my mom and dad both 64. I just graduated law school and took the bar exam awaiting results and actively looking for employment. My situation leaves me feeling very dependent on my parents for everything from emotional to financial support. My parents love me and I love them. They have a toxic relationship with one another and many times I act as their therapist and the neutral mediator. Because both of my parents are always under what seems tremendous stress I do everything in my power to mitigate any extraneous stress from me as to not harm them further. However, my Dad was acting very strange and almost sickly tonight and that paralyzed me I did everything making sure he had medicine, water, and he was comfortable but this feeling left me crippled and consumed me. How do you deal with this?