I've had floaters as long as I can remember - a few years ago my optician got all worried and sent me to clinic for he'd spotted a problem. This turned out to be blood leaking into my left retina, and has left me with a small blank in my vision near the centre. If I look at a plain wall I can see this spot and chase it around trying to look at it directly. Shortly after this was discovered I had my first migraine at work: when the jaggies appeared I really thought that my retina had come off and felt pretty bad.
It hasn't got any worse: it has certainly not helped the modelling I do for I cannot get a straight line with that eye: presumably the retina is wrinkled slightly. Given that I'm now at the age where I can't see close work (I never could see at a distance) I could do without any other problems but it isn't being a problem now.