Every single time I lay raelyn down she projectile vomits everywhere. She had thrown up everything…

Every single time I lay raelyn down she projectile vomits everywhere. She had thrown up everything she has in her stomach. She gags and chokes trying to throw up nothing if she is the slightest bit not elevated. So I’m sitting up and she’s sleeping on my chest sitting up because it’s the only way she will sleep without puking. She got her shots yesterday, could this be caused by her shots?