what are the signs someone is on the run/ in hiding?

I’m pretty sure my father is in hiding or something like that. I’ve questioned him before about my doubts but he always gives vague answers. This is why:

-moved to a teeny tiny village in the middle of somewhere, with barely any money and in a rush.

-no real job, or any proof of a job, n he gets super annoyed when I ask about his job.

-random income, large amounts such as 10.000-40.000, but never a monthly income.

-never has been to the dentist, or the doctor in all of the years he’s lived here (abt 20 yrs)

-vehicles are always registered to my mothers name

So much more stuff it drives me crazy