Hi my Ds has been vomiting up any (most) milk and refusing all solids for going on two days now. He is taking sips or a gulp or two of water here and there. yesterday I was worried about dehydration as he wasn't even drinking much and his eyes looked a little 'sunken' (mind you, he understandably looked peaky generally). No diarrhea or temperature but just wondering how long he can go on like this before I need to take him to the doctors (maybe I should have already?) Any advice appreciated.