My little guy spits up sooo much. He's mostly breastfed. Been introducing formula. About 4 oz a day. I'm using the similac sensitive. He's been waking himself up after I put him down for the night cuz he's spitting up so much so he's been sleeping in his rocker seat thing so he can sit up. I've been reading up on reflux. It doesn't seem to be bothering him. He just wakes up cuz he's soaked in puke. Got some new bottles yesterday called bare bottles. Concept is good but they are a pain in the ass.  Just tried one of them to see if he keeps it down. Have doc appt tomorrow hopefully can get some answers.