Hypoglycemia symptoms at above 100 bs le

I am diabetic for last 15 years and my HbA1c levels are fluctuating between 6.2 to 6.8. At present i am under medication of Victoza 1.2 mg and metformin SR1000mg twice a day. The problem for last 3 or 4 months is after 4 hours of taking break fast or lunch ie at around 12.AM and at around 5 pm i am suffering with severe shakiness, weakness, trembling and confusion. all typical hypoglycemic symptoms. I am checking my blood sugar levels and it is always around 110-120. There is no issue with gluco meter or strips. Counter checked with different meters. After immediately taking lunch or some snacks , i am coming out of the problem. As i understood hypoglycemia happens when sugar reading falls below 70. But at around 100-110 why I am feeling all these issues? what may be the reason and what is the solution?