Hi there, I am female and 24 years old. I have a small white speck that looks like it is floating on the lens (on the iris) of my right eye. It has been there for about a month now... It looks like something that can be wiped away, but when I touch it, it does not budge. I have never worn contact lenses and I have every good eyesight in both eyes. Today, however, this right eye is aching. What is this?