I have had the Paragard for three years now. I finally caught the hang of checking for strings, as mine were cut really short. I have to squat and reach. Though because I have not been able to feel them for 3 years, I am not sure I can be for sure. I have heard it feels like fishing line, which is this feeling, but my question is: How far up should I be feeling them. I have to reach up a little over 3 inches, does that sound too high or low?