Hi Last night I stopped breast feeding and am now exclusively expressing for my 13 week old son. I have had loads of problems - mastitis, blocked ducts and milk blisters and I couldn't carry on any more. Anyway, I have been really anxious about expressing enough milk for him and have been expressing as much as I can at every feed. I am now about a feed ahead of him - does this mean I am expressing too much? He does tend to cluster feed in the evening so may use all the extra milk tonight. I also find that I can't get as much out of my left boob (which incidentally is the one that never causes me any problems!) Is this normal?