Sounds exactly like what I've been trying to get rid of for the past 2 months. What a weird feeling! I am a good stretch North of you though.
It started a week ago, building slowly. I thought it went away after 2 days of sleeping 10 hours or so in a row. I even up'd the dose of SSKI a little during that time and it seemed to go away. I've started doing more vitamin C hourly in hopes of getting rid of it. I've also tried H2O2 (hydrogen peroxide) in the ears, but there's very little fizzing. An ear infection usually fizzles a lot comparatively. It feels more like inflammation of the canal or inner ear area. It affects hearing slightly, but not very much.