Haveyou been diagnosed with diabetes or insulin resistance. If you have than you should buy a monitor. When you buy one check the prices of the test strips since you will be buying them all the time. WalMart sells a ReliOn monitor that is inexpensive and the strips are reasonably priced. Here's a link
http://www.walmart.com/catalog/produ...uct_id=3555238. I have used the ReliOn and it is a good meter. All meters have a log book so you can write down your results. You should test first thing in the morning and two hours after each meal. My doctor wants my fasting to be under 114 and two hours after meals to be under 140.
The Metformin will help with the highs and lows. I'm on 2000mgs a day. The side effects when you first start Meformin are yucky but they do eventually go away.