I found a small lump behind my left ear. It feels like a hard ball under the skin, but it does not move. When I apply slight pressure I feel pain in my ear. Should I see a doctor?:confused:

Yes, you should see a doctor. No one here that might be a doctor can actually diagnose what it is without physically examining it. Someone here might be able to give you advice as to what it might be. But, the bottom line is, that it would be best to see a doctor.