Hi mummies,my 22month old toddler recently have been waking up middle of the night and crying. Has been going on for more than 2 weeks now. Before that,she was able to sleep soundly throughout the night. And during normal daytime, she seem to display sense of insecurity and starts crying when we move out of her sight. She wasn't like this before. She goes to full day childcare. Teacher did not highlight any incident that has happened lately and she's not unwilling to go to school. Anyone has any idea what I should do to help my girl regain her usual self? Thanks in advance!