Meditation practice - Meditation Odd Effect -

I am doing vipassana meditation from last six month and had done two 10 days course of S N Goenka Vipassana Meditation.Doing daily 2 hours meditation in morning and evening. I am having constant sensation on my right cheek and on forehead during meditation and even after meditation almost 24 hours. Also have continure sensation in head in brain, on top, Side and back side of head ,I am not able to sleep due to it and I am feeling i am doing some thing wrong. As i understand that i am not monk who engage in meditation 24 hours. Should i do simple anapana, Not vipassana ? What should i do ? How can overcome it ? Or I should leave meditation and leave life as earlier as i was living ? Kindly provide solution in detail how to do, Like do it yourself ?