DS2 slept brilliantly for first 8 weeks - up to 6 hours at a time but has got worse and worse. He's had a cold a mild exzema on his head but nothing drastic. Last couple of nights only 20 mins between some feeds. He's a big boy, already over a stone. Also fills up during the day. I'm running out of energy with 22mnth old too, last night ended up banging my head against the wall, literally! DS1 has also been ill and going through clingy 'mummy doooooo it!' phase. I would prefer to carry on BF DS2 exclusively, any advice?