hi i am a 31 year old female,who has had a lump in my groin area ,someties maybe once a month it will grow to the size of a golfball it is very painful and i constantly feel sicknss when it grows.i have had this problem for 6 years now.when it shrinks back to normal it is the size of a pea but it doesnt cause me any pain then.i also have the same thing in my breast which i found on the 12/6/2007.please could you tell me if you know what are they and do i need to worry as i cannot stop thinking the worst.