There are lots of things you can do before (or in addition to ) meds for reflux. Positioning - wedge under the mattress, change table etc. Wear baby after her meal or hold her up right for an hour or so to help the food stay in the tummy. When breastfeeding, also hold bub more upright - bum lower than head and tummy. For solids, maybe less acidic foods would help?

I don't know that it is reflux, but its worth trying things to see if you get some relief.

If you want to go meds route, my mchn said try mylanta 1ml (bub was younger than yours though, would have to look up dose for older bub) to see if it made a difference.