i went on holiday about a year ago and when i got off the plane i had a big lump with a bruise around it on the lower back off my leg.i thourght nothing of it...i went on holiday 6months later the bruise and lump were still there,when i returned from holiday the bruise and lump are now at the front!about 6weeks ago it moved up my leg abit and the bruise is still there?help.