Fairly significant lump on the back left side of my skull approximately 3 linniear from my left ear. Lump is accompied by some swelling , feeling unusual sensations expanding over about a 5 radius of this generalized area. Lump had slight drainagea few days ago, like an abscess , but now feels like that s not all thats there...now just feels pressure, some head pain , funny feeling, tingling , and cold like sensation.