 [ Symptoms ] found a lump behind my ear thats quite painfull when i touch it its not a pimple what can it be  hello i have found a lump behind my left ear thats quite painfull when i touch it i found it about a week ago i have read about other people with the same problem and people all answered very different what do you think it could be people have mentioned cancer but like í said it was all kind of different theories [ Disease ] in my opinion the pain sites may indicate another gastritis attack or pancreatitis you should do an abdominal usg to detect any problem and get the right treatment try reducing analgesics intake avoid caffeine for ulcer possibility thanks