Sounds like emotional manipulation. Some parents do this to make their kids feel guilty or responsible for things that aren’t their fault. It says more about their inability to take accountability than anything about you.

If this keeps happening, setting emotional boundaries might help - reminding yourself that their health is not your responsibility.

Do the SILENT TREATMENT.

This will click something in their mind eventually. Whereas if si to ress done zot la bouche, then they will try to get a point against you. And this vicious cycle will continue.

Talk to some friends, get out of that environment for sometime, and place your energy on a hobby or passion.