If there is a sudden increase in floaters inside your eye, it could be a Retinal Detachment, which means your retina is starting to peel off !

There could also be sparks of light when you blink.

In this case, please go to see an Opthalmologist URGENTLY !!
A retina detachment is considered a medical emergency and you could go blind in that eye if you dont get it treated as soon as possible.