One of my boobs is really sore across the top and one side. It feels rock hard in this area, like its engorged but having no joy expressing from it-nothing really coming out and ds seems disinterested in feeding from it making me think he's not getting anything either. Yesterday I had my handbag strap cutting across my boob-(trying to work out how to work a baby bjorn and handbag comfortably)-could this be the cause? Its really painful but not the complete agony a lot of previous postings describe it as. Is this only the beginning?? Any advice?