my 2007 lincoln MKZ sounds like its creaking

What is your question?

when i drive my 2007 lincoln mkz it sounds like when u step on creaky stairs. some days it does it right when i start driving and sometimes after ive been driving for 10 min or more. it creaks when u push down on hood of car . one mechanic i asked thinks its the lower ball joint or upper ball joint but is not sure. the ford lincoln car company here has a waiting list like 3 months long and very bad reviews so i need help asap. my car has 80,000 miles 2007 lincoln mkz.

What makes this problem better or worse?

after driving it a few minutes

How long has your 2007 Lincoln MKZ had this problem?

around 6 months