Don't freak out about a score given you by a free multiple choice test on a website. Particularly because it's pretty much on a sliding scale of how much you agree with a statement; I might stub my toe and rate that as 9/10 pain, someone else might rate it as 2/10. In the same way, we rate experiences differently, so a score on a test like that could well be completely inaccurate. As Sam said, you need to look at whether or not the problem you are testing for is interfering with your day to day functioning when deciding whether to get help.
K