I have been referred for 2 week fast track to have a lump checked and I cannot think straight!!  I thought it was a sebacious cyst but doc says it is not so has referred me.  It has grown in the last couple of weeks and I feel discomfort from it when I breath in and pain in shoulder blade.  It has grown in the last couple of weeks; i always thought breast lumps were found only by mammogram but this is clearly visible on my cleavage; has anyone had anything similar.