I have a small red mark on my leg, it's smaller than a 5p piece. Best way to describe it is like a faint red bruise, photo attached. It's small and faint, I'm going to go to the GP to get it checked but have put it off because it's so small just feel a bit silly! I noticed it a couple of months ago and it hasn't changed at all from then. It's ever so slightly tender with pressure on otherwise nothing else... skin it totally flat. Any ideas what this could be? 🤔