Re: Big vomits in 5 month old
Some babies continue to spit up until much closer to a year. My second kid was still a huge spitter at 6 months and an occasional spitter at close to her first birthday. Just be patient! Eventually her sphincters are going to get better at holding her food down where it belongs. In my experience, spitting up tends to ease when the baby starts to spend more time sitting up instead of lying down. If your LO hasn't yet managed to sit up, that could explain some of the continued spitting.
Just keep reminding yourself that when spit-ups happen without evidence of pain in a baby who is gaining weight at a normal rate, they're a laundry issue, not a health issue.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"