My infant is about to turn 10 months old this week. She has been crawling now for almost a month, and is pushing herself up into downward dog yoga-type positions. She HAD been sleeping quite well. She would wake once around 12am and fuss for a few minutes before putting herself back to sleep and wake again between 3-4am for a feed. We have recently done the tough-love approach to end the mid-of-the-night feed. I understand that new milestones often cause disruptions in a baby`s sleep, although she is waking up MANY times a night now and fussing. I would estimate she`s waking at least four times a night right now. She also does not have any NEW teeth coming in right now. Can you offer your insight on why this may be happening? She`s had no immunizations recently either, and she is not sick at the moment (although she does go to daycare three days a week, so she often is).