My eyes changes color daily is this a health risk?

For some weird reason my eyes change different colors almost every single day. Its not really annoying me, but it has me worried. My eyes go from most shades of green, bright gold, hazel, most shades of brown, then usually really dark almost black, and on rare days blue, and red. I have 20/20 vision, and I never have worn contacts or glasses. Yet this is when it gets scary even though I don't do anything to strain my eyes I (mostly friends and family) notice that my eyes look irritated as if I have been rubbing them, It honestly looks as if I had a aneurysm. Also from time to time I can see white spots which I know for a fact is not good because what usually follows that is blindness. I have not seen any lately (aka several months) *Phew* I just want to know what this is really called and what side effects this may have. P.s. I know this should be genetic, but then my eyes should only change colors every 15-20 so years...*sigh* Please help.