I have this lump on my lower cheek by anus and it s probably the size of a peach seed but could be small due to soreness of touching it after discovery. There was no pain prior of discover but after my daily workout and sat it seemed I m not sure how long I ve had this there because It seems like if I can remember it comes and goes but maybe it just grew and was always there. I know I should go to the doctor for an examination but does this sound like anything concerning?