I've been BFing my 5 month old baby with no issues since she was born. Yesterday my right boob was a bit sore and is much worse today. There's nothing visible at all; no lumps, no engorgement, no cracked nipples or skin and she's fed plenty from it.
Just wondering whether this could be mastitis brewing? I'm going on holiday at 13:30 today and don't know whether to try and get a GP appointment this morning prior to leaving...