What Could Cause Hearing Strange Sounds, Light And Low Ringing In Ears With History Of Muffled Hearing?

Last week,for about 3 days my hearing was very limited out of my right ear. It sounded blocked or muffled. When my hearing came back, I got a pretty bad headache so I decided to take some aspirin. About a half hour later, the world was spinning around me. I slept it off that afternoon, but over the weekend (last Friday-Sunday) I felt very dizzy and nauseated throughout the day. I woke up fine, but then throughout the day the dizziness and nausea would return. I didn't take any more aspirin because I know that wouldn't have been good in addition to my sxs, but today I noticed that my music that I normally play from my computer sounded very funny. I thought it was just my computer, but I went to the drugstore and the music in the b ackground was "robot-like" too. I have had the tv on for a half hour or so, and what I am hearing soun very robotic and almost off-pitch, like an out of tune piano. Any leads on what this could be? I don't have any pain (yet) but I have had some very light, low ringing in my ears when I am in a very quiet place. Any suggestions would be greatly appreciated.