Have huge DS, 13 weeks old, my second baby & ebf. He is big, 17 lbs now & feeds very frequently. Thought I was doing quite well to feed him & look after my toddler but I've got very fed up. He has a growth spurt about every 2 weeks, we have all been ill & I have terrible backache as he is so heavy. I wanted to get to 6 months as we have serious allergy on the family so wanted to give him as much chance as I can for him not to develop this. I'm so worn out though, & today have terrible migraine that I think must be caused by dehydration from so much feeding, tiredness & back pain. Need some wise words from someone...