Jake will only settle for another 20mins with a dummy too - so I just feed him now as its easier and quicker in the long run. In saying that, hes only up once in the night and he sleeps through til 5/6 most of the time now, and he only feeds for 10mins on one side, so not as bad as what you are going through! Hugs!
If you do have any nutrition questions feel free to PM me.