Is anything being done to help dislodge the blockage? I had my colt choke twice in one week when I switched over to new feed. My dad and I massage up and down his throat to help dislodge the feed. He coughed multiple times and ended up coughing a chunk of feed onto me. How is he acting? Is he just standing there with his head down? Good luck to your boy, I hope everything turns out okay. It is definitely a scary thing to deal with.