45 blood sugar level?

I've been questioning whether or not I'm diabetic and I bought a glucose tester today and it said my blood sugar level is 45. What does that mean?
Update: I did read the instructions right and was very precise in following each step correctly. I researched my symptoms and it seems as though I might have hypoglycemia. I'm going to get an appt. for next week to have the test done.
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