today early morning before breakfast (8+ hours after eating dinner)my blood sugar level is 101 .Am I diabetic?

yesterday it was 87 at 5pm.(I ate only breakfast at 8am and did not eat anything up to 5pm).why is this big difference in my blood sugar levels? I am 25 years old. I am using Accu chek compact plus biabetes testing kit.
I am not diabetic so far.
and the testing kit is my personal one.

Fasting Blood Sugar Test:
Measures the blood sugar level after 8 hours fast or overnight. Normal fasting blood glucose level is less than 100mg/dl. If your fasting blood glucose level is from 100mg/dl to 125mg/dl then you will have impaired blood glucose level also known as Pre-Diabetes. If your blood glucose level is above 125mg/dl then your doctor will diagnose as a patient of diabetes. To confirm the diagnosis, your doctor may repeat the fasting blood glucose test on any other day. If you have blood glucose level of 126mg/dl or higher in two consecutive tests, then you may have diabetes. If you have blood glucose level greater than 200mg/dl and you have symptoms of diabetes like increased thirst or hunger, frequent urination, weight loss, blurred vision etc, then you may be diagnosed with diabetes mellitus without confirming it with second test.

Keep checking everyday . Testing meters vary and may not be so accurate. I would gamble this is the problem. Maybe buy a new set of strips. If your strips are close to 90 day from the time you opened them , that could be a problem.
Good luck

ACCU-CHEK Aviva Mail Order Test Strips, 50-Count Box $20.95 ACCU-CHEK Aviva Mail Order Test Strips is for use with Accu-Chek Aviva Meter with easier blood application designed to fill strip on first try. Larger, wider strip makes handling easy for people of all ages and 8 electrodes at the top of each strip provide confident testing…

ACCU-CHEK Compact Mail Order Test Strips, 51-Count Box $22.00 Accu Chek Compact Glucose Test Strips require no strip handling Preloaded drum of 17 diabetes test strips–for no individual strip handling No coding For fewer steps in testing Fast results Test results appear in just five seconds Alternate site testing Test from your fingertip palm forearm upper arm thigh or calf…

ACCU-CHEK Aviva Blood Glucose Meter $8.99 Tests right the first time to make every strip count. Quick fill test strip is easy to handle. System checks itself so you can have confidence in the results. Quick 5-second results using just a .6 microliter blood sample. Nonslip rubber grips provide a more comfortable and secure grip. Downloadable 500 value memory with 7, 14, and 30 day averaging. System has 4 test reminders, event flagging and …

Glooko IR Adapter The Glooko IR Adapter connects to the Glooko MeterSync Cable and uses infrared technology to transfer data from ACCU-CHEK meters into the Glooko Logbook app. Say goodbye to manually recording your blood glucose meter readings and say hello to a logbook that fits your lifestyle. You’ll love the way the IR Adapter and Cable pulls the readings already in your meter(s) and creates a logbook right on y…

Accu-Chek Compact User’s Manual (English/Espanol …