Aww, thanks girls!! The doc said it's probably just hormonal. He had a feel and the lump is smaller, almost not there anymore. Still a little bit sore, but not like the other day. He said to keep an eye on it and come back if it changes. I'm not really worried about it tbh! I think it was just the initial shock of finding it. I am going to be doing my breast checks properly now that's for sure!!