I started having my 4 month old CIO after my pediatricians recommendation and she cried for over an hour and started choking on her spit and it was bad! Any tips? Should I just let her keep crying?! I have a video monitor to watch her to make sure she isn't too bad but it's just so sad! She wakes up every hour and a half through the night though so she needs to learn to self soothe. Any one else go through this?