Mark your response as:
Not a problem
A mild problem - present, but not troublesome
A moderate problem - troubling but not disabling
A severe problem - it really interferes with day-to-day life
Another way to respond is:
Not a problem - never or rarely happens
A mild problem - happens sometimes
A moderate problem - happens most of the time
A severe problem - happens all the time
If you can't answer a particular question, just respond by selecting Not a problem.