Have switched 7mo old DS onto Aptimil follow on milk for his afternoon feed as I'm back at work. He is still BF morning and evening. Trouble is he is quite constipated now and it's making him really grumpy. Have given him lots of water and fruit etc and I'm starting to wonder if their is a better formula for him that wouldn't cause this problem. Has anyone had experiences in switching formula or gone back to breastfeeding because of constipation?