I know I have swimmers ear. Now it feels like I have fluid in my ear and its blocking it up. Is this drainage? If so will it go away by itself?

See doctor. If ear is plugged after swimming it could just be ear wax or could be swimmers ear. See a doc to find out and to get the correct treatment.
See a Dr. This may be serious.Please see a dr.Uncomplicated swimmers ear may be treated with isopropyl alcohol or hydrogen peroxide but i suspect your problem includes a cerumen (ear wax) blockage.