My son will be 5 months old in 10 days. Lately has really decreased his eating. He has acid reflux, so I bottle feed him expressed breast milk to keep him elevated. He used to eat about 25-28 oz each day, and now he's down to 18-20 oz. He's just started sleeping through the night too (which is weird to me since he's decreased his eating). Has anyone else experienced this? Is it normal? He's gaining weight. Thanks in advance!