Has anyone had experience with LO having acid reflux? We think my 2week old has it. It's really bad at night. Tonight she vomited everything but then wanted to nurse again. Just not sure what to do for her when she seems like she wants to burp or pass gas and she can't, she's arching herself, and seems like she's in terrible pain. She also does throw up burps and makes a sour face after and will randomly gag.