Welcome to the Forum!
When I first decided to get serious about my diabetes I had a sharpe fall in BG numbers as well. You may notice a feeling of low and the check of the blood sugars indicate the normal range. Most-times this is due to the blood sugars being high for a prolonged time. When the body gets used to the blood sugars, staying in the normal ranges, this feeling will subside.
Read through the first three threads in the Type 2 Section, when you get a chance, if you have not already done so. These threads will most-likely help you a lot. Self education is one of the keys to successful management of your diabetes, along with a healthy / sensible diet and exercise. Basically, diabetes requires a life-style change for the better. Good luck with your control and management.