Floaters are an indication that the vitreous (the gel in the back of your eye) is separating. This is a normal phenomenon of aging. However, this process can take several weeks to months to complete. During this process, there is a rare but definite chance that the gel could pull on the retina and tear it. Just because the retina was fine 2 weeks ago does not mean that it is not involved now. I tell all of my patients undergoing a vitreous detachment that if any changes occur, they need to come back right away. That is my recommendation for you also. I think that you could wait until the morning, but you should definitely be seen tomorrow.
Hope this helps.
Thanks Dr Chan - that's most helpful and I will do as you advise. Best wishes, Mike.