I am a 23 year old male. I have an olive sized lump on my left groin area. Its mostly painless though I would say that it recently has caused some very mild discomfort. It's been there for at least 10 days without any noticeable change in size. There is no skin discoloration. I find that when I'm laying down, the lump is not noticeable and seems "to have gone away". In fact, It seems as if it's not always there. I have even noticed times when standing when the lump was not present. I can push the lump down, but when I let go, it bulges back to its original position. One month ago I was diagnosed with shingles. I treated the diagnosis as instructed and all symptoms seem to have disappeared.