why my 6 months completed baby needs more feed at night. she wakes often now a days. before 6 months she sleeps for 5 hours without feeding, she wakes only 2 times at night but now she wakes more times than before at night.even though I'm offering her solids 2 times. at mid-day and night before sleep.even though she is waking for feeds. I don't know why it happens. it makes me more stressed about her sleep patterns