I had fallen off my horse two weeks ago, ended up having x-rays swelling was extreme around my tailbone and the bruising it caused was massive, again two weeks ago, bruising is gone, just about but I have a lump which doesnt hurt if pushed on but is located around my tailbone probably the size of a half a grapefruit, is this water and will it go away given time... or do I have to have it drained possibly... My ex-rays showed no chips, or breakage...