Laying my 9wo DS flat is nearly a guarantee for baby sick. So, we have a wedge in his moses basket and he spends a lot of time in his bouncy chair. But I'm worried it's bad he doesn't get much time lying flat or on his tummy to move about. Yesterday, I waited until a few hours after he fed to try him on the playmat, but he still sicked up, it was just mostly clear instead of milky 
What do the rest of you with refluxy babies do? Do you still put them on the playmat, floor, etc. and just mop up after them? (Often, he is unhappy being flat, but sometimes he's ok with it even if he is sick.)
Am I overreacting--is it normal that lying flat almost always makes a baby of this age sick? This is my first, so I just don't know.