Been posting this week as I have a painful tender breast,in one place.GP said he could feel thickening along a duct and has referred me for a mammogram,he thinks it is probably a blocked duct but wants to be sure.I felt not too worried,in that i thought it felt like a blocked duct when I was feeding,but it isn't clearing-I have tried to massage it but this is tricky as I am scared of the pain and I also can't feel the actual lump.When DD feeds it feels as though a duct may be unblocking but it still hurts afterwards.It has been going on for nearly a week and now I am getting really worried,in case the reason that it isn't clearing is because there is a more sinister lump there causing the duct to block up.I also have misgivings about a mammogram when bf,is it ok to do that ? My GP is not very clued up about breastfeeding.