Generally you will know if you've had a bleed as you'll see dark streaks across your vision, these streaks will gradually disperse into a thousand little black dots that eventually disappear altogether, in some severe cases where the bleed doesn't disperse or the vessels continue to bleed then surgery is required.
I was always told by my Ophthalmology team to report any changes or bleeds so that they can get me in to take a look, if your under the care of your Ophthalmology Dept then I'd ring them up and ask for advice, failing that get your gp to check your eyes.
As for driving, well it goes without saying if your vision is badly affected then it would be unwise to drive until things settle down, hope everything works out fine for you!