Hi!!! Because Thomas is not drinking a lot at all ( had 15 ounces today, that is all he wanted to take) I am a bit worried he is not putting on weight as much as he should. The H/V said he was fine but still wants him checked every 2 weeks. So if you could tell me the age of your baby and weight, that would be great, so i can see if Thomas is ok weight wise He also has bad stomach aches and is constipated too. When he drinks, his body goes stiff and downwards. I use Aptamil but i bought Cand G omneo comfort to see if it makes things better. Thomas is 13 pounds and is 15 weeks old.