I would do two things; first, fasting test with another meter and with yours at the same time to see if yours is out of calibration; two, I would get an A1c test to verify normal glucose level. If the A1c results are normal, don't fret anymore.
Pardon my ignorance, what is an A1c test?
No problem. First, any prandial test (fasting and after meal) captures glucose only at test time, not yesterday, two days ago, or a three weeks ago. It really doesn't tell a doctor what is going with your glucose levels at all times of the day. Home glucose meters are good to see how well one is managing their glucose levels. Having scaled results (high to low, or normal to near high or above) calls for an A1c test to see the entire picture.
An A1c test measures your glucose going back three months. Why three months? On the average, new red blood cells live three months before dieing off and getting turned into Bilirubin. Excess glucose binds to the outer wall of red cells and the A1c captures this. The A1c determines where you stand as far diabetes goes. Your results are presented in percentile (%) where some labs have the high water mark at 7%, others at 6%. If you go above your labs high range, you are diabetic - no ifs or buts. There are OTC home kits available but I don't know their degree of accuracy.