Do YOU have a problem?

Did you ever lose time from work or school due to gambling?
Has gambling ever made your home life unhappy?
Have you ever felt remorse after gambling?
Did gambling cause a decrease in your ambition or efficiency?
After losing did you feel you must return as soon as possible and win back your losses?
After a win did you have a strong urge to return and win more?
Did you often gamble until your last dollar was gone?
Did you ever borrow to finance your gambling?
Were you reluctant to use "gambling money" for normal expenditures?
Did gambling make you careless of the welfare of yourself or your family?
Did you ever gamble longer than you had planned?
Have you ever committed, or considered committing, an illegal act to finance gambling?
Have you ever considered self destruction or suicide as a result of your gambling?

I don't understand why these questions are in past tense.