I went to see my aunt in the hospital yesterday .

She has a disease that runs in her family.,

I’m not sure what you meant here, but I’m assuming you meant that her family has a genetic disease

Sso she has been sick for a long time.

You don’t need to make two entirely different sentences here, as “so” is a conjoining word.

I went to see my aunt in the hospital yesterday .

I whent to go see my aunt in the hospital.

"go" here is optional

She has run in her family.

This sentence doesn't make sense. What runs in her family?

I hope sher gets better soon.

I went to see my aunt in the hospital yesterday .

I whent to see my aunt in the hospital.

She’s 80 years old this year.

She has run in her family.

I don't know what you tried to say

So she has been sick for a long time.

I hope sher gets better soon.