question: i have a lump inbetween my bum cheeks like right in the middle quite a bit above my bum hole or whatever you want to call it but yeah its not like on top of the skin its like in it and it hurts to touch but not really to sit down because its like deep inbetween my bum cheeks but yeah its about half the size of a golf ball but i dont think its a boil or anything its like quite under yeah what is it thank you :)