Sounds like the prescription is wrong, I'm -4.75 in glasses but I wear -4.25 lenses. Also you might need to try a few different types of lenses for dry eyes, did you have dailies? Make sure your hands are clean, sometimes I get little fibres from my hair/clothes on the lens just before I put it in and that feels scratchy. You can always hold it up to the light to check for any muck, sometimes I even get make up smudges on mine. They definitely shouldn't feel like there's something in your eye, I always forget mine are in!