Lymph Node or Tissue?

[ShaunRyder]

Between my armpit and breast area I can feel a soft movable lump/tissue

I am not sure what it is as if I pull the skin the lump is not their, which makes me think it is not a lymph node. Its not big, smaller/same size as a pea, but feels like it is underskin not on the skin.

Any ideas what this could be? Not hugely hugely worried so would prefer to ignore the docs for as long as i can.

[Gary A]

Why does it matter? Do you really need to know where every single lymph node in your body is? You're obsessing over this and it's not helping you.