Woke up this morning with a very sore boob on one side, it is very tender to touch, i had a hot bath and and a feelfor any lumps and bumps but there were not any...never had this before could it be to do with my period that started on thursday?? should I see drorwaitand see what happens??? have been trying to think if i have banged it but dont think so :( Anyone with suggestions?(oh stopped breast feeding about 1 year ago)