My daughter is 7 months old turning 8 months in a couple of days. SHE DOES NOT SLEEP THROUGH THE NIGHT AT ALL. She wakes up a good 2-3 times a night screaming crying. I’ve tried to let her cry it out and put herself to sleep but she cries so hard to the point where she starts to hyperventilate. I have tried everything, I have shortened her naps through the day, gave her heavy meals before bed and she still does this. She is not teething, she has been doing this for a couple months. When she was 3 months old she was sleeping through the night but as soon as she hit 4 months everything changed. Advise?