My DD is just over 3mo, she has never slept for more than 3 hours & this is a rarety. She is exclusively BF & at present I have mastitis & she is biting when fretting. Things are not good. She has recently had flaying arms, banging her legs, only napping now for about 40 mins a go & it is getting exhausting. She is a gorgeous child who when she gives the amazing smiles & generally is a pleasant & charming little girl. I know that its nothing she is doing, it can only be me & what I am doing must be wrong to get her to sleep/settle. Please help me to get it right.