Is my son having stomach problems? Or is it something else?

Hello.I think that you need to take your baby to see a doctor to make sure nothing is wrong.Try to calm down,I know it's easier said than done honey.Have you tried squeezing a fresh orange every day,straining it and diluting it with a little warm water to give him.I don't know what age your baby is but it could be an allergy to the milk.Cow's milk is perfect for baby cows but not baby humans.You could try changing his milk to soya formula.