you need to read their policies for those answeres! you really should have known those things before linking to your bank account, there are lots of security issues if you do not take proper precautions. please go back to your pay pal account and read the policies and rules and fees and linking accounts.
and no, the money does not (automatically) go to your bank account, you have to go to your paypal account and transfer it, and it takes 3-5 days for the transfer to take place.