I just checked the manual for my
meter, Pink, and it doesn't do that. Have you re-tested? Do you continue to get that reading? Have you made sure you have the right code tab in your meter for the strips you are using, and have you used control solution to make sure it is working correctly? If you keep getting that reading without any numbers after you've done all that, I would call your doctor.
How do you feel? Are you familiar with how you feel when you are high? Are you thirsty?