Whats the difference? Sorry for the ignorance.

Milo spits up a little after virtually every feed, not usually more than 10/20 ml I guess, but has been almost a full feed on occasion.

He gets so much wind, its incredible. Sometimes it takes an hour or more to settle him & get all the wind out. He'll be trying so hard to sleep, and then wince in pain and jerk his arms around, and kick his legs out straight. This cycle will go on for a while until he finally gets to sleep.

At what age can they diagnose reflux?