Girls, I'd love to hear your opinion. The baby has been restless for t…

Girls, I'd love to hear your opinion. The baby has been restless for two days now. He keeps throwing up. We're on mixed feeding. Today he's vomiting constantly. I've been giving him 2 drops of Aquadetrim for two days now. Could this be related to his condition? And you know how strangely he breathes when he sleeps? He used to breathe calmly, and his stomach would rise. But since last night, his stomach rises quickly with every breath, as if he's breathing fast. Could he have caught a cold? We were outside yesterday in the wind.