I found that the first couple days I was very conscious about the sensor and now I don't even notice that it is on me. The sensor can be extremely accurate if it in the proper part of the body, but it is very sensitive to agitation or pressure against it, these things will cause it to be inaccurate. Everyone seems to have different results as to where on the body yields the best readings. I can get two weeks of extremely accurate readings using the upper abdomen, but lower abdomen, lower back, inner thigh have not given the same result. It will take a bit of trial and error to get Dexcom working properly and it is very frustrating when the readings are not accurate, but it is an amazing device when it is working and I would suggest that you stick with it.