On top of a dreadful drone in right ear I also have a bit of hissing/sizzle in the left. This morning at 3am I woke up and hissing was so bad, almost as if it reacts with the music coming from the radio. Yesterday after vacuuming I could feel it being louder again. It's almost as if outside noises are piercing through my left ear with no filters, my ear feels "wide open" if that makes any sense at all. I'm scared and puzzled what is this. I must say that hissing settled a bit after I went to sleep in a complete silence in the lounge. Any input?