Good day, girls! Daughter on solids, she was eating from 2 months old …

Good day, girls! Daughter on solids, she was eating from 2 months old on Optipro, everything was great, at 5 months before bedtime she ate and the next time could wake up only in the morning, or even completely sleep through until morning. But with the transition to the second stage we started some kind of nightmare. She sleeps poorly at night, capricious, wakes up to eat two to three times at night, I already have no strength. I follow the doctor's recommendations for feeding, during the day intervals in feeding four hours, but at night we have big problems. To the pediatrician soon to go to the appointment, just wanted to know, maybe someone also had problems after switching to formula "more mature"?