What's Happening?

When I picked Zach back from Mum's stall, out of the lift, he ran towards the gate, he tripped ver the chair along the corridor, ah bonk! Nasty fall. Cried so badly and next thing he did... he puked!! As long as he cough, the tendency of him vomiting is almost 100%. Stinks!! Big Time! I had to wash him up and cleaned the place. Okay that's vomit no.1 I saw today. Just 10 mins ago. He did it again on the bed!! This time round,  so much more puke! Cough cough and thats it!! Out all he taken and the stinks comes!! Zach Zach..What happen to you!!? I can't bear to see him vomit, he is like suffering so much. His whole face turns red and I can see his discomfort!! Told Doctors about it but all said he is fine. Glad of course but he kept puking at the slightest cough! Stressed man!! So worried that he is sick!!