What will the symptoms be of a liver disease 9 months after getting a covid-19 vaccine? what should i be looking for? need help, feeling scared and not sure if i'm overreacting?

Why do you think you have liver disease. It is very highly unlikely that Covid-19 vaccine would cause liver damage. Your doctor can do tests to assess liver function, though there is no reason to do the tests.

Do you have any basis to be concerned about liver disease? Were your liver enzymes normal? is the whites of your eyes yellow? That would be a first start. Start with blood work you can then get an ultrasound and if needed CT or MRI to evaluate the parenchyma. Follow up with your doctor Don't worry.