Update: Saw the eye doc yesterday morning, the vitreous detachment he noted a month ago has progressed further causing the floater to appear. Not a retina tear, bleed, or detachment. Very common due to aging, nothing can be done to prevent it, nothing I can't do because of it. Will go back in 6 weeks to check things again. It will eventually stabilize and where the floater ends up in my vision field will determine if I can deal with it or do something about it.