Need help from a eye doc:-Harmless/Harmfull floater?

It may very well be a harmless floater. Sometimes the vitreous gel in your eye clumps, and you may see it floating. No big deal, really. It will go away eventually. But if you notice an increase in floaters, any flashes of light, a curtain come over your vision or a huge difference in your vision you need to get to your ophthalmologist immediately because it could be the beginning of a retinal tear or detachment, which could severely decrease your vision, possibly permanently if not taken care of right away. If you're still not 100% sure, I'd recommend seeing an ophthalmologist for a dilated fundus exam, just to be on the safe side! :)