Not sure what is going on with Boo

I was in the middle of writing a post earlier about how Boo is doing better when he puked on me for the second time today. Once I can write off, but twice? Makes me think something is going on. He wasn't coughing. I'm just thinking it's from the antibiotics upsetting his tummy. He won't eat much at all. So he eats a little, we give him antibiotics, he pukes. I don't know if he is even really getting the antibiotics. I called the dr office, and the nurse said to try to give meds to him in half doses with snacks. But he's not eating! So I'm not sure how it's going to work. Getting puked on is not fun. I just want my baby to get better.