It all started when I was in a bus for 3 hours or so. I was listening to a song with a high pitched xylophone as the intro instrumental. I listened to the song for a while and then after listening to the song, I could hear the faint high pitched xylophone despite the music not playing anymore. When I stepped out of the bus, it was gone.
Then a few days after, I was at a coffee shop and I was listening to different songs and when I removed my headphones, I could hear this ringing sound on my left ear again. I suspected it was the sound system or the coffee makers but no one made a fuss about it. It might be just me. I decided to listen to music again and the sound was blocked out but when I paused or lowered the volume, I could hear it. When I left the coffee shop, the ringing sound was gone.
And just now, while eating, the television was on. I heard another ringing sound. I was with our maid's grandson and he didn't seem to notice. I turned off the television and the ringing disappeared. I turned it on again and it came back. I left the kitchen and the sound completely went away.
I listen to music quite loudly; I listen to a lot of house music and all that. Especially with earphones. Could that be the cause?