Hun, I had the same problem with both boys. The one-off full express really does help. With DS2 the midwife was so shocked when she walked in and saw 440mls in bottles - then I told her I'd expressed more but thrown it out as I ran out of bottles. All the middies came down to see the record breaking stash LOL!! I still was over-full when I re-filled, but not to the same extent as before the express.

I hope it settles down soon for you hun, I know how painful it is