How do you know when You have strep throat?

The other week Penelepe was complaining of a sore throat. Oliver then told Penelepe strep throat feels like a metal ball, a brick, a wooden (I can't remember what was wooden), and a wheel all exploding in your throat. So the next time you feel like that - you probably have strep. Unfortunately, both Penelepe and Violette must have had that feeling the following day.