DD is 5.5 months. She's always had problems self settling and rejects all types of dummy but until about 3.5 months, the sure way for her to settle was to suck on my finger. All of a sudden, she rejected my finger and now the only way to settle is to carry her and to bounce bounce bounce (standing up only) - anywhere up to 2-3 hours. If she wakes up in the middle of the night and can not feed back to sleep, it's a repeat all over again. Our backs are in pain! Any suggestions welcome!