Ear Pain

In my left ear. I don't hear any ringing sounds, so I don't think that it is tinnitus. With regards to listening to music: I don't DJ in clubs, I only listen to music at home, for both leisure and DJing purposes, quietly and never usually for extreme periods of time. It's been happening all day, feels like my left ear is congested - sort of like when you're on a plane - and when I go to listen to music on my laptop, without headphones, it starts annoying me really fast so I turn it off.

Infection?

Might be. It'll hurt when you touch it and the pain will start moving down your jaw if it is.

sounds pretty much like an infection...i used to get this.
later it will escalates of becoming rather annoying, then become really painful!
worst case you'll have puss comes out from the infected ear, and it's nasty on top of the pain.

so go see a doctor immediately for medication.
if you get these infection several times, it may deteriorate your hearing...have an audiometry test & monitor it from there.

If there's no pain (do this test: tug on your earlobe), then it could just be built up earwax.

Thanks, I'll ring the doctor and organise an appointment