Sir, I am suffering from a very disappointing problem. Behind my left ear ,a vein is bumping very fastly and it irritates me. I can explain you in detail. Behind the left year, the point where jaw bone ends, a vein sometimes bumps fastly and sometimes it pains very much. Please tell me about it. Is there any need to be tensed about this problem? Is this a serious problem or a normal issue? And please tell its treatment. It had put me in a great problem and tension.