Sorry about this but f**k, what is this lump on my ass? I discovered a lump right at the bottom of my inside buttock a few months ago, average size lump, no pain at all, thought it was a cyst straight away since I was told by the doctor that I had a cyst on the back of my ear which has since gone

anyway I wake up this mornin in plenty of pain because this thing has really started to get sore, I cant sit straight
tell me what you think?? I know your gonna suggest seeing my doctor, but I am like most guys and dont like dropping the pants infront of people, well maybe when I am drunk
can cysts be that sore? And is it likely to clear like the one on my ear?
Thanks very much