Sorry I've posted on here for traffic. I've got this pea sized lump on my arm. I've never been too concerned, I've had it about a year. I just mentioned it to a friend and she asked me if it moved about. It doesn't and she said usually when they're harmless they move about. She said it can't be a cyst because they always move about. I'm now trying to get an appointment to see GP. Can anyone offer any reassurance. I do have health anxiety.