So, Noah will be 3 months on Tuesday! It's crazy how times fly! He's been formula fed since 5 weeks old, and the formula he's been on the whole time is Enfamil AR (added rice). So today I decide I'm going to switch formula to Enfamil and add my own rice cereal, (I have a few sample cans of it so I'm going to use that up then go to Parent's Choice because it's way cheaper). I gave him his first bottle at 6am today. Problem is, he's been sleeping ALL day. He'll wake up long enough to eat, then go right back to sleep. He almost seems sort of lethargic, or lazy to me. It's really freaking me out. DH says he doesn't notice a difference, but I definitely do! I didn't think the Enfamil with me adding rice cereal would make a difference since he's been on AR for 7 weeks. What could it be?